| Cardiff vs | Newport | ||||
| Matches | 441 | ||||
| Won | 215 | ||||
| Lost | 186 | ||||
| Drawn | 60 | ||||
| Points For | 4481 | ||||
| Points Against | 3847 | ||||
| Date | Home | Away | Venue | ||
| 02/12/1876 | Newport | 0 | 0 | Cardiff | Marshes, Newport |
| 10/02/1877 | Cardiff | 0 | 0 | Newport | Sophia Gardens, Cardiff |
| 01/12/1877 | Cardiff | 0 | 0 | Newport | Sophia Gardens, Cardiff |
| 19/01/1878 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 23/11/1878 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 08/03/1879 | Cardiff | 0 | 0 | Newport | Sophia Gardens, Cardiff |
| 08/11/1879 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 18/12/1880 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 26/03/1881 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 10/12/1881 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 18/02/1882 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 11/03/1882 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 08/04/1882 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 09/12/1882 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 31/03/1883 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 03/11/1883 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 26/01/1884 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 22/11/1884 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 31/01/1885 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 07/11/1885 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 16/01/1886 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 13/11/1886 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 22/01/1887 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 08/10/1887 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 12/11/1887 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 21/01/1888 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 11/02/1888 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 13/10/1888 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 24/11/1888 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 26/01/1889 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 06/04/1889 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 19/10/1889 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 30/11/1889 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 11/01/1890 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 08/03/1890 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 18/10/1890 | Newport | 0 | 5 | Cardiff | Rodney Parade, Newport |
| 22/11/1890 | Cardiff | 13 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 31/01/1891 | Newport | 11 | 0 | Cardiff | Rodney Parade, Newport |
| 14/03/1891 | Cardiff | 0 | 15 | Newport | Cardiff Arms Park, Cardiff |
| 17/10/1891 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 21/11/1891 | Newport | 28 | 3 | Cardiff | Rodney Parade, Newport |
| 30/01/1892 | Cardiff | 0 | 14 | Newport | Cardiff Arms Park, Cardiff |
| 02/04/1892 | Newport | 29 | 0 | Cardiff | Rodney Parade, Newport |
| 15/10/1892 | Cardiff | 3 | 14 | Newport | Cardiff Arms Park, Cardiff |
| 26/11/1892 | Newport | 26 | 0 | Cardiff | Rodney Parade, Newport |
| 11/02/1893 | Cardiff | 11 | 9 | Newport | Cardiff Arms Park, Cardiff |
| 18/03/1893 | Newport | 3 | 5 | Cardiff | Rodney Parade, Newport |
| 21/10/1893 | Newport | 11 | 3 | Cardiff | Rodney Parade, Newport |
| 11/11/1893 | Cardiff | 8 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 13/01/1894 | Newport | 9 | 0 | Cardiff | Rodney Parade, Newport |
| 03/03/1894 | Cardiff | 10 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 20/10/1894 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 24/11/1894 | Newport | 7 | 0 | Cardiff | Rodney Parade, Newport |
| 30/03/1895 | Newport | 5 | 3 | Cardiff | Rodney Parade, Newport |
| 10/04/1895 | Cardiff | 3 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 19/10/1895 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 23/11/1895 | Cardiff | 6 | 5 | Newport | Cardiff Arms Park, Cardiff |
| 15/02/1896 | Newport | 11 | 4 | Cardiff | Rodney Parade, Newport |
| 21/03/1896 | Cardiff | 0 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 17/10/1896 | Cardiff | 0 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 28/11/1896 | Newport | 14 | 0 | Cardiff | Rodney Parade, Newport |
| 13/02/1897 | Cardiff | 6 | 13 | Newport | Cardiff Arms Park, Cardiff |
| 13/03/1897 | Newport | 0 | 3 | Cardiff | Rodney Parade, Newport |
| 23/10/1897 | Newport | 3 | 20 | Cardiff | Rodney Parade, Newport |
| 27/11/1897 | Cardiff | 3 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 26/02/1898 | Newport | 9 | 20 | Cardiff | Rodney Parade, Newport |
| 26/03/1898 | Cardiff | 18 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 22/10/1898 | Cardiff | 8 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 26/11/1898 | Newport | 0 | 9 | Cardiff | Rodney Parade, Newport |
| 25/02/1899 | Cardiff | 8 | 5 | Newport | Cardiff Arms Park, Cardiff |
| 25/03/1899 | Newport | 9 | 5 | Cardiff | Rodney Parade, Newport |
| 21/10/1899 | Newport | 12 | 4 | Cardiff | Rodney Parade, Newport |
| 25/11/1899 | Cardiff | 4 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 24/02/1900 | Newport | 6 | 0 | Cardiff | Rodney Parade, Newport |
| 24/03/1900 | Cardiff | 9 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 20/10/1900 | Cardiff | 6 | 12 | Newport | Cardiff Arms Park, Cardiff |
| 24/11/1900 | Newport | 15 | 6 | Cardiff | Rodney Parade, Newport |
| 23/02/1901 | Cardiff | 3 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 23/03/1901 | Newport | 0 | 10 | Cardiff | Rodney Parade, Newport |
| 19/10/1901 | Newport | 3 | 7 | Cardiff | Rodney Parade, Newport |
| 23/11/1901 | Cardiff | 7 | 5 | Newport | Cardiff Arms Park, Cardiff |
| 22/02/1902 | Newport | 4 | 6 | Cardiff | Rodney Parade, Newport |
| 22/03/1902 | Cardiff | 0 | 10 | Newport | Cardiff Arms Park, Cardiff |
| 18/10/1902 | Cardiff | 0 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 22/11/1902 | Newport | 3 | 0 | Cardiff | Rodney Parade, Newport |
| 21/02/1903 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 21/03/1903 | Newport | 28 | 5 | Cardiff | Rodney Parade, Newport |
| 17/10/1903 | Newport | 4 | 0 | Cardiff | Rodney Parade, Newport |
| 21/11/1903 | Cardiff | 9 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 20/02/1904 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 19/03/1904 | Cardiff | 3 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 15/10/1904 | Cardiff | 11 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 19/11/1904 | Newport | 7 | 5 | Cardiff | Rodney Parade, Newport |
| 18/02/1905 | Cardiff | 21 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 18/03/1905 | Newport | 6 | 3 | Cardiff | Rodney Parade, Newport |
| 14/10/1905 | Newport | 3 | 17 | Cardiff | Rodney Parade, Newport |
| 18/11/1905 | Cardiff | 14 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 17/02/1906 | Newport | 3 | 10 | Cardiff | Rodney Parade, Newport |
| 17/03/1906 | Cardiff | 20 | 5 | Newport | Cardiff Arms Park, Cardiff |
| 13/10/1906 | Cardiff | 3 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 17/11/1906 | Newport | 0 | 11 | Cardiff | Rodney Parade, Newport |
| 16/02/1907 | Cardiff | 3 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 16/03/1907 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 12/10/1907 | Newport | 3 | 7 | Cardiff | Rodney Parade, Newport |
| 16/11/1907 | Cardiff | 6 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 15/02/1908 | Newport | 3 | 6 | Cardiff | Rodney Parade, Newport |
| 07/03/1908 | Cardiff | 3 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 10/10/1908 | Cardiff | 15 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 14/11/1908 | Newport | 5 | 11 | Cardiff | Rodney Parade, Newport |
| 13/02/1909 | Cardiff | 12 | 11 | Newport | Cardiff Arms Park, Cardiff |
| 30/09/1909 | Newport | 16 | 0 | Cardiff | Rodney Parade, Newport |
| 09/10/1909 | Newport | 4 | 4 | Cardiff | Rodney Parade, Newport |
| 13/11/1909 | Cardiff | 4 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 12/02/1910 | Newport | 8 | 9 | Cardiff | Rodney Parade, Newport |
| 05/03/1910 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 08/10/1910 | Newport | 9 | 8 | Cardiff | Rodney Parade, Newport |
| 12/11/1910 | Newport | 5 | 8 | Cardiff | Rodney Parade, Newport |
| 11/02/1911 | Cardiff | 3 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 04/03/1911 | Newport | 15 | 10 | Cardiff | Rodney Parade, Newport |
| 07/10/1911 | Newport | 10 | 0 | Cardiff | Rodney Parade, Newport |
| 11/11/1911 | Cardiff | 9 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 10/02/1912 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 02/03/1912 | Cardiff | 3 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 05/10/1912 | Cardiff | 0 | 4 | Newport | Cardiff Arms Park, Cardiff |
| 16/11/1912 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 08/02/1913 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 15/03/1913 | Newport | 23 | 10 | Cardiff | Rodney Parade, Newport |
| 11/10/1913 | Newport | 12 | 8 | Cardiff | Rodney Parade, Newport |
| 29/11/1913 | Cardiff | 0 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 07/03/1914 | Newport | 11 | 5 | Cardiff | Rodney Parade, Newport |
| 21/03/1914 | Cardiff | 3 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 04/10/1919 | Cardiff | 3 | 29 | Newport | Cardiff Arms Park, Cardiff |
| 22/11/1919 | Newport | 18 | 0 | Cardiff | Rodney Parade, Newport |
| 06/03/1920 | Cardiff | 3 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 27/03/1920 | Newport | 26 | 14 | Cardiff | Rodney Parade, Newport |
| 02/10/1920 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 13/11/1920 | Cardiff | 7 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 05/03/1921 | Newport | 5 | 3 | Cardiff | Rodney Parade, Newport |
| 02/04/1921 | Cardiff | 19 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 01/10/1921 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 12/11/1921 | Newport | 3 | 11 | Cardiff | Rodney Parade, Newport |
| 04/03/1922 | Cardiff | 0 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 01/05/1922 | Newport | 3 | 8 | Cardiff | Rodney Parade, Newport |
| 07/10/1922 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 11/11/1922 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 03/03/1923 | Newport | 16 | 3 | Cardiff | Rodney Parade, Newport |
| 07/04/1923 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 06/10/1923 | Cardiff | 3 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 10/11/1923 | Newport | 4 | 3 | Cardiff | Rodney Parade, Newport |
| 01/03/1924 | Cardiff | 0 | 11 | Newport | Cardiff Arms Park, Cardiff |
| 05/04/1924 | Newport | 14 | 12 | Cardiff | Rodney Parade, Newport |
| 04/10/1924 | Newport | 3 | 11 | Cardiff | Rodney Parade, Newport |
| 08/11/1924 | Cardiff | 3 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 07/03/1925 | Newport | 0 | 0 | Cardiff | Rodney Parade, Newport |
| 04/04/1925 | Cardiff | 3 | 4 | Newport | Cardiff Arms Park, Cardiff |
| 03/10/1925 | Newport | 11 | 16 | Cardiff | Rodney Parade, Newport |
| 14/11/1925 | Cardiff | 5 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 27/02/1926 | Newport | 8 | 5 | Cardiff | Rodney Parade, Newport |
| 20/03/1926 | Cardiff | 9 | 5 | Newport | Cardiff Arms Park, Cardiff |
| 02/10/1926 | Newport | 12 | 11 | Cardiff | Rodney Parade, Newport |
| 13/11/1926 | Cardiff | 14 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 19/02/1927 | Newport | 5 | 9 | Cardiff | Rodney Parade, Newport |
| 09/04/1927 | Cardiff | 17 | 15 | Newport | Cardiff Arms Park, Cardiff |
| 01/10/1927 | Cardiff | 10 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 05/11/1927 | Newport | 0 | 3 | Cardiff | Rodney Parade, Newport |
| 18/02/1928 | Cardiff | 6 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 03/03/1928 | Newport | 3 | 12 | Cardiff | Rodney Parade, Newport |
| 06/10/1928 | Newport | 6 | 3 | Cardiff | Rodney Parade, Newport |
| 10/11/1928 | Cardiff | 12 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 02/03/1929 | Cardiff | 6 | 9 | Newport | Cardiff Arms Park, Cardiff |
| 21/03/1929 | Newport | 0 | 11 | Cardiff | Rodney Parade, Newport |
| 05/10/1929 | Cardiff | 3 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 02/11/1929 | Newport | 5 | 9 | Cardiff | Rodney Parade, Newport |
| 15/02/1930 | Cardiff | 8 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 01/03/1930 | Newport | 9 | 3 | Cardiff | Rodney Parade, Newport |
| 04/10/1930 | Newport | 11 | 11 | Cardiff | Rodney Parade, Newport |
| 08/11/1930 | Cardiff | 9 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 21/02/1931 | Newport | 3 | 0 | Cardiff | Rodney Parade, Newport |
| 07/03/1931 | Cardiff | 14 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 03/10/1931 | Cardiff | 8 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 14/11/1931 | Newport | 0 | 5 | Cardiff | Rodney Parade, Newport |
| 20/02/1932 | Cardiff | 9 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 05/03/1932 | Newport | 10 | 5 | Cardiff | Rodney Parade, Newport |
| 01/10/1932 | Newport | 5 | 10 | Cardiff | Rodney Parade, Newport |
| 12/11/1932 | Cardiff | 24 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 18/02/1933 | Newport | 12 | 10 | Cardiff | Rodney Parade, Newport |
| 04/03/1933 | Cardiff | 21 | 4 | Newport | Cardiff Arms Park, Cardiff |
| 07/10/1933 | Cardiff | 3 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 11/11/1933 | Newport | 11 | 4 | Cardiff | Rodney Parade, Newport |
| 17/02/1934 | Cardiff | 7 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 03/03/1934 | Newport | 5 | 0 | Cardiff | Rodney Parade, Newport |
| 06/10/1934 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 10/11/1934 | Cardiff | 9 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 16/02/1935 | Cardiff | 3 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 02/03/1935 | Newport | 0 | 6 | Cardiff | Rodney Parade, Newport |
| 05/10/1935 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 09/11/1935 | Newport | 13 | 6 | Cardiff | Rodney Parade, Newport |
| 15/02/1936 | Cardiff | 0 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 07/03/1936 | Newport | 0 | 3 | Cardiff | Rodney Parade, Newport |
| 03/10/1936 | Newport | 6 | 9 | Cardiff | Rodney Parade, Newport |
| 21/11/1936 | Cardiff | 11 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 20/02/1937 | Newport | 8 | 3 | Cardiff | Rodney Parade, Newport |
| 06/03/1937 | Cardiff | 11 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 02/10/1937 | Cardiff | 5 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 13/11/1937 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 19/02/1938 | Cardiff | 11 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 05/03/1938 | Newport | 6 | 13 | Cardiff | Rodney Parade, Newport |
| 01/10/1938 | Newport | 5 | 11 | Cardiff | Rodney Parade, Newport |
| 12/11/1938 | Cardiff | 13 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 18/02/1939 | Newport | 0 | 7 | Cardiff | Rodney Parade, Newport |
| 04/03/1939 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 06/10/1945 | Cardiff | 28 | 17 | Newport | Cardiff Arms Park, Cardiff |
| 10/11/1945 | Newport | 6 | 10 | Cardiff | Rodney Parade, Newport |
| 16/02/1946 | Cardiff | 3 | 7 | Newport | Cardiff Arms Park, Cardiff |
| 02/03/1946 | Newport | 6 | 3 | Cardiff | Rodney Parade, Newport |
| 05/10/1946 | Newport | 6 | 8 | Cardiff | Rodney Parade, Newport |
| 09/11/1946 | Cardiff | 11 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 15/02/1947 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 01/03/1947 | Cardiff | 13 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 04/10/1947 | Cardiff | 29 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 08/11/1947 | Newport | 0 | 12 | Cardiff | Rodney Parade, Newport |
| 06/03/1948 | Newport | 5 | 8 | Cardiff | Rodney Parade, Newport |
| 10/04/1948 | Cardiff | 19 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 02/10/1948 | Newport | 0 | 9 | Cardiff | Rodney Parade, Newport |
| 13/11/1948 | Cardiff | 5 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 19/02/1949 | Cardiff | 3 | 3 | Newport | Rodney Parade, Newport |
| 05/03/1949 | Cardiff | 5 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 01/10/1949 | Cardiff | 14 | 5 | Newport | Cardiff Arms Park, Cardiff |
| 12/11/1949 | Newport | 0 | 11 | Cardiff | Rodney Parade, Newport |
| 04/03/1950 | Newport | 8 | 11 | Cardiff | Rodney Parade, Newport |
| 01/04/1950 | Cardiff | 0 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 07/10/1950 | Cardiff | 3 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 11/11/1950 | Newport | 8 | 6 | Cardiff | Rodney Parade, Newport |
| 17/02/1951 | Cardiff | 3 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 03/03/1951 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 06/10/1951 | Cardiff | 11 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 15/12/1951 | Newport | 5 | 6 | Cardiff | Rodney Parade, Newport |
| 12/01/1952 | Cardiff | 6 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 01/03/1952 | Newport | 6 | 11 | Cardiff | Rodney Parade, Newport |
| 04/10/1952 | Newport | 3 | 9 | Cardiff | Rodney Parade, Newport |
| 08/11/1952 | Cardiff | 14 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 21/02/1953 | Newport | 6 | 0 | Cardiff | Rodney Parade, Newport |
| 07/03/1953 | Cardiff | 5 | 5 | Newport | Cardiff Arms Park, Cardiff |
| 03/10/1953 | Cardiff | 15 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 14/11/1953 | Newport | 3 | 5 | Cardiff | Rodney Parade, Newport |
| 06/03/1954 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 17/03/1954 | Cardiff | 13 | 9 | Newport | Cardiff Arms Park, Cardiff |
| 02/10/1954 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 13/11/1954 | Cardiff | 6 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 19/02/1955 | Newport | 0 | 6 | Cardiff | Rodney Parade, Newport |
| 05/03/1955 | Cardiff | 6 | 11 | Newport | Cardiff Arms Park, Cardiff |
| 01/10/1955 | Cardiff | 6 | 16 | Newport | Cardiff Arms Park, Cardiff |
| 12/11/1955 | Newport | 13 | 0 | Cardiff | Rodney Parade, Newport |
| 18/02/1956 | Cardiff | 0 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 03/03/1956 | Newport | 9 | 10 | Cardiff | Rodney Parade, Newport |
| 06/10/1956 | Newport | 6 | 6 | Cardiff | Rodney Parade, Newport |
| 10/11/1956 | Cardiff | 6 | 5 | Newport | Cardiff Arms Park, Cardiff |
| 16/02/1957 | Newport | 0 | 8 | Cardiff | Rodney Parade, Newport |
| 02/03/1957 | Cardiff | 0 | 10 | Newport | Cardiff Arms Park, Cardiff |
| 05/10/1957 | Newport | 0 | 3 | Cardiff | Rodney Parade, Newport |
| 19/10/1957 | Cardiff | 3 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 01/03/1958 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 15/03/1958 | Cardiff | 6 | 14 | Newport | Cardiff Arms Park, Cardiff |
| 04/10/1958 | Newport | 11 | 0 | Cardiff | Rodney Parade, Newport |
| 08/11/1958 | Cardiff | 8 | 9 | Newport | Cardiff Arms Park, Cardiff |
| 21/02/1959 | Newport | 19 | 5 | Cardiff | Rodney Parade, Newport |
| 07/03/1959 | Cardiff | 0 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 03/10/1959 | Newport | 9 | 3 | Cardiff | Rodney Parade, Newport |
| 14/11/1959 | Cardiff | 8 | 12 | Newport | Cardiff Arms Park, Cardiff |
| 20/02/1960 | Cardiff | 6 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 05/03/1960 | Newport | 3 | 0 | Cardiff | Rodney Parade, Newport |
| 12/11/1960 | Cardiff | 3 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 14/12/1960 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 18/02/1961 | Newport | 3 | 17 | Cardiff | Rodney Parade, Newport |
| 04/03/1961 | Cardiff | 16 | 9 | Newport | Cardiff Arms Park, Cardiff |
| 07/10/1961 | Cardiff | 9 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 11/11/1961 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 17/02/1962 | Cardiff | 5 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 03/03/1962 | Newport | 6 | 6 | Cardiff | Rodney Parade, Newport |
| 06/10/1962 | Cardiff | 8 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 10/11/1962 | Newport | 6 | 9 | Cardiff | Rodney Parade, Newport |
| 02/03/1963 | Cardiff | 5 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 27/03/1963 | Newport | 8 | 8 | Cardiff | Rodney Parade, Newport |
| 05/10/1963 | Newport | 6 | 14 | Cardiff | Rodney Parade, Newport |
| 09/11/1963 | Cardiff | 3 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 17/02/1964 | Newport | 5 | 8 | Cardiff | Rodney Parade, Newport |
| 29/04/1964 | Cardiff | 11 | 11 | Newport | Cardiff Arms Park, Cardiff |
| 03/10/1964 | Cardiff | 5 | 10 | Newport | Cardiff Arms Park, Cardiff |
| 14/11/1964 | Newport | 15 | 13 | Cardiff | Rodney Parade, Newport |
| 20/02/1965 | Cardiff | 11 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 02/10/1965 | Newport | 8 | 17 | Cardiff | Rodney Parade, Newport |
| 13/11/1965 | Cardiff | 11 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 19/02/1966 | Newport | 8 | 0 | Cardiff | Rodney Parade, Newport |
| 01/10/1966 | Cardiff | 27 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 14/11/1966 | Newport | 8 | 0 | Cardiff | Rodney Parade, Newport |
| 18/02/1967 | Cardiff | 0 | 17 | Newport | Cardiff Arms Park, Cardiff |
| 04/03/1967 | Newport | 3 | 3 | Cardiff | Rodney Parade, Newport |
| 07/10/1967 | Newport | 11 | 6 | Cardiff | Rodney Parade, Newport |
| 25/10/1967 | Cardiff | 8 | 8 | Newport | Cardiff Arms Park, Cardiff |
| 17/02/1968 | Newport | 3 | 19 | Cardiff | Rodney Parade, Newport |
| 02/03/1968 | Cardiff | 26 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 05/10/1968 | Cardiff | 6 | 11 | Newport | Cardiff Arms Park, Cardiff |
| 09/11/1968 | Newport | 9 | 6 | Cardiff | Rodney Parade, Newport |
| 01/03/1969 | Newport | 6 | 3 | Cardiff | Rodney Parade, Newport |
| 16/04/1969 | Cardiff | 9 | 9 | Newport | Cardiff Arms Park, Cardiff |
| 04/10/1969 | Newport | 0 | 8 | Cardiff | Rodney Parade, Newport |
| 08/11/1969 | Cardiff | 3 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 21/02/1970 | Newport | 3 | 9 | Cardiff | Rodney Parade, Newport |
| 07/03/1970 | Cardiff | 14 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 03/10/1970 | Cardiff | 6 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 14/11/1970 | Newport | 6 | 3 | Cardiff | Rodney Parade, Newport |
| 20/02/1971 | Cardiff | 17 | 9 | Newport | Cardiff Arms Park, Cardiff |
| 06/03/1971 | Newport | 8 | 13 | Cardiff | Rodney Parade, Newport |
| 01/10/1971 | Newport | 7 | 4 | Cardiff | Rodney Parade, Newport |
| 13/11/1971 | Cardiff | 0 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 19/02/1972 | Newport | 4 | 17 | Cardiff | Rodney Parade, Newport |
| 04/03/1972 | Cardiff | 25 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 07/10/1972 | Newport | 14 | 18 | Cardiff | Rodney Parade, Newport |
| 08/11/1972 | Cardiff | 24 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 17/02/1973 | Cardiff | 19 | 10 | Newport | Cardiff Arms Park, Cardiff |
| 03/03/1973 | Newport | 7 | 6 | Cardiff | Rodney Parade, Newport |
| 05/10/1973 | Newport | 6 | 16 | Cardiff | Rodney Parade, Newport |
| 07/11/1973 | Cardiff | 38 | 14 | Newport | Cardiff Arms Park, Cardiff |
| 09/03/1974 | Newport | 6 | 3 | Cardiff | Rodney Parade, Newport |
| 27/03/1974 | Cardiff | 12 | 4 | Newport | Cardiff Arms Park, Cardiff |
| 02/10/1974 | Cardiff | 9 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 06/11/1974 | Newport | 13 | 0 | Cardiff | Rodney Parade, Newport |
| 08/03/1975 | Cardiff | 27 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 22/03/1975 | Newport | 7 | 18 | Cardiff | Rodney Parade, Newport |
| 04/10/1975 | Newport | 16 | 0 | Cardiff | Rodney Parade, Newport |
| 08/11/1975 | Cardiff | 14 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 13/03/1976 | Newport | 12 | 6 | Cardiff | Rodney Parade, Newport |
| 27/03/1976 | Cardiff | 15 | 17 | Newport | Cardiff Arms Park, Cardiff |
| 08/12/1976 | Cardiff | 14 | 12 | Newport | Cardiff Arms Park, Cardiff |
| 30/04/1977 | Cardiff | 15 | 16 | Newport | National Stadium, Cardiff |
| 01/10/1977 | Newport | 27 | 10 | Cardiff | Rodney Parade, Newport |
| 01/03/1978 | Newport | 3 | 12 | Cardiff | Rodney Parade, Newport |
| 05/04/1978 | Cardiff | 28 | 9 | Newport | Cardiff Arms Park, Cardiff |
| 07/10/1978 | Cardiff | 7 | 0 | Newport | Cardiff Arms Park, Cardiff |
| 24/03/1979 | Newport | 10 | 21 | Cardiff | Rodney Parade, Newport |
| 17/10/1979 | Newport | 12 | 21 | Cardiff | Rodney Parade, Newport |
| 22/03/1980 | Cardiff | 11 | 6 | Newport | Cardiff Arms Park, Cardiff |
| 04/10/1980 | Cardiff | 21 | 19 | Newport | Cardiff Arms Park, Cardiff |
| 28/03/1981 | Newport | 13 | 13 | Cardiff | Rodney Parade, Newport |
| 03/10/1981 | Newport | 6 | 15 | Cardiff | Rodney Parade, Newport |
| 02/10/1982 | Cardiff | 13 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 26/03/1983 | Newport | 13 | 8 | Cardiff | Rodney Parade, Newport |
| 01/10/1983 | Newport | 32 | 21 | Cardiff | Rodney Parade, Newport |
| 06/10/1984 | Cardiff | 37 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 05/10/1985 | Newport | 7 | 13 | Cardiff | Rodney Parade, Newport |
| 26/04/1986 | Cardiff | 28 | 21 | Newport | National Stadium, Cardiff |
| 04/10/1986 | Cardiff | 28 | 19 | Newport | Cardiff Arms Park, Cardiff |
| 28/02/1987 | Cardiff | 15 | 12 | Newport | Cardiff Arms Park, Cardiff |
| 03/10/1987 | Newport | 16 | 9 | Cardiff | Rodney Parade, Newport |
| 30/01/1988 | Newport | 13 | 26 | Cardiff | Rodney Parade, Newport |
| 13/02/1988 | Cardiff | 21 | 9 | Newport | Cardiff Arms Park, Cardiff |
| 28/03/1988 | Newport | 26 | 19 | Cardiff | Rodney Parade, Newport |
| 01/10/1988 | Cardiff | 36 | 10 | Newport | Cardiff Arms Park, Cardiff |
| 11/02/1989 | Newport | 15 | 31 | Cardiff | Rodney Parade, Newport |
| 07/10/1989 | Newport | 16 | 29 | Cardiff | Rodney Parade, Newport |
| 14/03/1990 | Cardiff | 9 | 15 | Newport | Cardiff Arms Park, Cardiff |
| 05/10/1990 | Newport | 34 | 9 | Cardiff | Rodney Parade, Newport |
| 16/11/1990 | Cardiff | 17 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 21/12/1991 | Newport | 12 | 6 | Cardiff | Rodney Parade, Newport |
| 22/02/1992 | Cardiff | 4 | 12 | Newport | Cardiff Arms Park, Cardiff |
| 21/04/1992 | Cardiff | 18 | 13 | Newport | Cardiff Arms Park, Cardiff |
| 28/11/1992 | Newport | 3 | 39 | Cardiff | Rodney Parade, Newport |
| 17/04/1993 | Cardiff | 36 | 20 | Newport | Cardiff Arms Park, Cardiff |
| 13/11/1993 | Cardiff | 52 | 3 | Newport | Cardiff Arms Park, Cardiff |
| 23/04/1994 | Newport | 22 | 22 | Cardiff | Rodney Parade, Newport |
| 16/09/1994 | Newport | 20 | 13 | Cardiff | Rodney Parade, Newport |
| 03/12/1994 | Newport | 6 | 19 | Cardiff | Rodney Parade, Newport |
| 29/04/1995 | Cardiff | 20 | 24 | Newport | Cardiff Arms Park, Cardiff |
| 25/11/1995 | Cardiff | 18 | 22 | Newport | Cardiff Arms Park, Cardiff |
| 27/04/1996 | Newport | 19 | 29 | Cardiff | Rodney Parade, Newport |
| 26/01/1997 | Newport | 30 | 44 | Cardiff | Rodney Parade, Newport |
| 01/04/1997 | Cardiff | 26 | 13 | Newport | Cardiff Arms Park, Cardiff |
| 10/05/1997 | Newport | 23 | 11 | Cardiff | Rodney Parade, Newport |
| 19/11/1997 | Cardiff | 38 | 15 | Newport | Cardiff Arms Park, Cardiff |
| 06/12/1997 | Newport | 25 | 26 | Cardiff | Rodney Parade, Newport |
| 13/05/1998 | Cardiff | 61 | 24 | Newport | Cardiff Arms Park, Cardiff |
| 04/09/1999 | Newport | 18 | 13 | Cardiff | Rodney Parade, Newport |
| 04/12/1999 | Cardiff | 26 | 22 | Newport | Cardiff Arms Park, Cardiff |
| 26/02/2000 | Newport | 22 | 13 | Cardiff | Rodney Parade, Newport |
| 16/09/2000 | Cardiff | 29 | 16 | Newport | Cardiff Arms Park, Cardiff |
| 26/12/2000 | Newport | 16 | 23 | Cardiff | Rodney Parade, Newport |
| 29/08/2001 | Cardiff | 20 | 14 | Newport | Cardiff Arms Park, Cardiff |
| 29/03/2002 | Cardiff | 20 | 14 | Newport | Cardiff Arms Park, Cardiff |
| 26/04/2002 | Newport | 14 | 17 | Cardiff | Rodney Parade, Newport |
| 28/09/2002 | Newport | 25 | 27 | Cardiff | Rodney Parade, Newport |
| 01/01/2003 | Newport | 31 | 3 | Cardiff | Rodney Parade, Newport |
| 25/04/2003 | Cardiff | 39 | 17 | Newport | Cardiff Arms Park, Cardiff |
| 01/11/2003 | Cardiff | 11 | 29 | Newport | Cardiff Arms Park, Cardiff |
| 13/03/2004 | Newport | 37 | 0 | Cardiff | Rodney Parade, Newport |
| 18/09/2004 | Cardiff | 27 | 33 | Newport | Cardiff Arms Park, Cardiff |
| 27/02/2005 | Newport | 22 | 14 | Cardiff | Rodney Parade, Newport |
| 02/11/2005 | Cardiff | 16 | 19 | Newport | Cardiff Arms Park, Cardiff |
| 25/03/2006 | Newport | 30 | 14 | Cardiff | Rodney Parade, Newport |
| 28/10/2006 | Newport | 18 | 18 | Cardiff | Rodney Parade, Newport |
| 03/03/2007 | Cardiff | 19 | 29 | Newport | Cardiff Arms Park, Cardiff |
| 03/11/2007 | Cardiff | 21 | 16 | Newport | Cardiff Arms Park, Cardiff |
| 08/04/2008 | Newport | 24 | 11 | Cardiff | Rodney Parade, Newport |
| 13/09/2008 | Newport | 30 | 3 | Cardiff | Rodney Parade, Newport |
| 17/01/2009 | Cardiff | 36 | 26 | Newport | Cardiff Arms Park, Cardiff |
| 07/11/2009 | Newport | 23 | 17 | Cardiff | Rodney Parade, Newport |
| 20/02/2010 | Newport | 20 | 22 | Cardiff | Rodney Parade, Newport |
| 31/03/2010 | Cardiff | 19 | 17 | Newport | Cardiff Arms Park, Cardiff |
| 19/03/2011 | Cardiff | 42 | 16 | Newport | Cardiff Arms Park, Cardiff |
| 09/04/2011 | Newport | 27 | 21 | Cardiff | Rodney Parade, Newport |
| 02/01/2012 | Cardiff | 6 | 22 | Newport | Cardiff Arms Park, Cardiff |
| 11/02/2012 | Newport | 36 | 19 | Cardiff | Rodney Parade, Newport |
| 15/09/2012 | Cardiff | 62 | 17 | Newport | Cardiff Arms Park, Cardiff |
| 21/12/2012 | Newport | 6 | 6 | Cardiff | Rodney Parade, Newport |
| 12/10/2013 | Cardiff | 32 | 17 | Newport | Cardiff Arms Park, Cardiff |
| 14/12/2013 | Newport | 11 | 21 | Cardiff | Rodney Parade, Newport |
| 11/10/2014 | Cardiff | 17 | 14 | Newport | Cardiff Arms Park, Cardiff |
| 07/03/2015 | Newport | 16 | 23 | Cardiff | Rodney Parade, Newport |
| 31/10/2015 | Cardiff | 36 | 28 | Newport | Cardiff Arms Park, Cardiff |
| 12/03/2016 | Newport | 42 | 24 | Cardiff | Rodney Parade, Newport |
| 02/09/2016 | Cardiff | 25 | 22 | Newport | Cardiff Arms Park, Cardiff |
| 25/02/2017 | Newport | 17 | 8 | Cardiff | Rodney Parade, Newport |
| 27/08/2017 | Newport | 19 | 31 | Cardiff | Rodney Parade, Newport |
| 27/10/2017 | Cardiff | 37 | 22 | Newport | Cardiff Arms Park, Cardiff |
| 30/12/2017 | Newport | 29 | 17 | Cardiff | Rodney Parade, Newport |
| 15/09/2018 | Cardiff | 29 | 27 | Newport | Cardiff Arms Park, Cardiff |
| 12/01/2019 | Newport | 32 | 38 | Cardiff | Rodney Parade, Newport |
| 07/12/2019 | Newport | 7 | 29 | Cardiff | Rodney Parade, Newport |
| 24/09/2021 | Newport | 23 | 20 | Cardiff | Rodney Parade, Newport |
| 05/11/2021 | Cardiff | 25 | 28 | Newport | Cardiff Arms Park, Cardiff |
| 12/03/2022 | Newport | 7 | 38 | Cardiff | Rodney Parade, Newport |
| 26/03/2022 | Newport | 34 | 28 | Cardiff | Sardis Rd, Pontypridd |
| 22/09/2022 | Newport | 32 | 34 | Cardiff | Newport Stadium |
| 14/01/2023 | Cardiff | 17 | 18 | Newport | Cardiff Arms Park, Cardiff |
| 23/04/2023 | Cardiff | 13 | 10 | Newport | Principality Stadium |
| 14/05/2023 | Cardiff | 21 | 7 | Newport | Cardiff Arms Park, Cardiff |
| 23/09/2023 | Cardiff | 38 | 15 | Newport | Cardiff Arms Park, Cardiff |
| 11/11/2023 | Cardiff | 15 | 26 | Newport | Cardiff Arms Park, Cardiff |
| 09/03/2024 | Newport | 28 | 14 | Cardiff | Rodney Parade, Newport |
| 22/12/2024 | Cardiff | 20 | 27 | Newport | Cardiff Arms Park, Cardiff |
| 28/12/2024 | Newport | 30 | 36 | Cardiff | Newport Stadium |
| 11/05/2025 | Cardiff | 20 | 35 | Newport | Cardiff Arms Park, Cardiff |