| RETURN TO LEAGUE LISTING | |||||||||||
| Year | Division | Home | Away | Date | Win | Draw | Loss | Gills Gls | Away Gls | ||
| 1986/1987 | Div 3 Play-Off Final Replay | Swindon Town | 2-0 | Gillingham | 29/05/1987 | at Selhurst Park | 0 | 0 | 1 | 0 | 2 |
| Div 3 Play-Off Final 2nd Leg | Swindon Town | 2-1 | Gillingham | 25/05/1987 | 0 | 0 | 1 | 1 | 2 | ||
| Div 3 Play-Off Final 1st Leg | Gillingham | 1-0 | Swindon Town | 22/05/1987 | 1 | 0 | 0 | 1 | 0 | ||
| English Division 3 (old) | Swindon Town | 1-1 | Gillingham | 04/05/1987 | 0 | 1 | 0 | 1 | 1 | ||
| English Division 3 (old) | Gillingham | 1-3 | Swindon Town | 27/12/1986 | 0 | 0 | 1 | 1 | 3 | ||
| 1981/1982 | English Division 3 (old) | Swindon Town | 0-1 | Gillingham | 20/03/1982 | 1 | 0 | 0 | 1 | 0 | |
| English Division 3 (old) | Gillingham | 1-0 | Swindon Town | 31/10/1981 | 1 | 0 | 0 | 1 | 0 | ||
| 1980/1981 | English Division 3 (old) | Swindon Town | 0-0 | Gillingham | 04/11/1980 | 0 | 1 | 0 | 0 | 0 | |
| English Division 3 (old) | Gillingham | 0-0 | Swindon Town | 07/10/1980 | 0 | 1 | 0 | 0 | 0 | ||
| 1979/1980 | English Division 3 (old) | Swindon Town | 3-0 | Gillingham | 19/04/1980 | 0 | 0 | 1 | 0 | 3 | |
| English Division 3 (old) | Gillingham | 0-0 | Swindon Town | 01/12/1979 | 0 | 1 | 0 | 0 | 0 | ||
| 1978/1979 | English Division 3 (old) | Swindon Town | 3-1 | Gillingham | 05/05/1979 | 0 | 0 | 1 | 1 | 3 | |
| English Division 3 (old) | Gillingham | 2-2 | Swindon Town | 31/03/1979 | 0 | 1 | 0 | 2 | 2 | ||
| 1977/1978 | English Division 3 (old) | Gillingham | 2-2 | Swindon Town | 31/12/1977 | 0 | 1 | 0 | 2 | 2 | |
| English Division 3 (old) | Swindon Town | 3-2 | Gillingham | 05/11/1977 | 0 | 0 | 1 | 2 | 3 | ||
| 1976/1977 | English Division 3 (old) | Gillingham | 2-2 | Swindon Town | 05/03/1977 | 0 | 1 | 0 | 2 | 2 | |
| English Division 3 (old) | Swindon Town | 2-2 | Gillingham | 25/09/1976 | 0 | 1 | 0 | 2 | 2 | ||
| 1975/1976 | English Division 3 (old) | Gillingham | 3-2 | Swindon Town | 10/01/1976 | 1 | 0 | 0 | 3 | 2 | |
| English Division 3 (old) | Swindon Town | 2-2 | Gillingham | 30/08/1975 | 0 | 1 | 0 | 2 | 2 | ||
| 1974/1975 | English Division 3 (old) | Gillingham | 3-1 | Swindon Town | 22/02/1975 | 1 | 0 | 0 | 3 | 1 | |
| English Division 3 (old) | Swindon Town | 1-0 | Gillingham | 16/11/1974 | 0 | 0 | 1 | 0 | 1 | ||
| 1968/1969 | English Division 3 (old) | Gillingham | 2-0 | Swindon Town | 05/03/1969 | 1 | 0 | 0 | 2 | 0 | |
| English Division 3 (old) | Swindon Town | 1-0 | Gillingham | 25/02/1969 | 0 | 0 | 1 | 0 | 1 | ||
| 1967/1968 | English Division 3 (old) | Gillingham | 3-1 | Swindon Town | 10/02/1968 | 1 | 0 | 0 | 3 | 1 | |
| English Division 3 (old) | Swindon Town | 2-2 | Gillingham | 30/09/1967 | 0 | 1 | 0 | 2 | 2 | ||
| 1966/1967 | English Division 3 (old) | Swindon Town | 2-0 | Gillingham | 08/04/1967 | 0 | 0 | 1 | 0 | 2 | |
| English Division 3 (old) | Gillingham | 1-0 | Swindon Town | 12/11/1966 | 1 | 0 | 0 | 1 | 0 | ||
| 1965/1966 | English Division 3 (old) | Gillingham | 1-0 | Swindon Town | 01/01/1966 | 1 | 0 | 0 | 1 | 0 | |
| English Division 3 (old) | Swindon Town | 0-1 | Gillingham | 09/10/1965 | 1 | 0 | 0 | 1 | 0 | ||
| 1957/1958 | English Division 3 South | Swindon Town | 1-1 | Gillingham | 15/02/1958 | 0 | 1 | 0 | 1 | 1 | |
| English Division 3 South | Gillingham | 2-1 | Swindon Town | 05/10/1957 | 1 | 0 | 0 | 2 | 1 | ||
| 1956/1957 | English Division 3 South | Swindon Town | 2-3 | Gillingham | 12/09/1956 | 1 | 0 | 0 | 3 | 2 | |
| English Division 3 South | Gillingham | 3-0 | Swindon Town | 05/09/1956 | 1 | 0 | 0 | 3 | 0 | ||
| 1955/1956 | English Division 3 South | Swindon Town | 0-1 | Gillingham | 24/03/1956 | 1 | 0 | 0 | 1 | 0 | |
| English Division 3 South | Gillingham | 4-0 | Swindon Town | 12/11/1955 | 1 | 0 | 0 | 4 | 0 | ||
| 1954/1955 | English Division 3 South | Swindon Town | 2-1 | Gillingham | 05/02/1955 | 0 | 0 | 1 | 1 | 2 | |
| English Division 3 South | Gillingham | 2-1 | Swindon Town | 18/09/1954 | 1 | 0 | 0 | 2 | 1 | ||
| 1953/1954 | English Division 3 South | Swindon Town | 2-1 | Gillingham | 03/04/1954 | 0 | 0 | 1 | 1 | 2 | |
| English Division 3 South | Gillingham | 1-0 | Swindon Town | 14/11/1953 | 1 | 0 | 0 | 1 | 0 | ||
| 1952/1953 | English Division 3 South | Gillingham | 0-0 | Swindon Town | 17/09/1952 | 0 | 1 | 0 | 0 | 0 | |
| English Division 3 South | Swindon Town | 0-0 | Gillingham | 10/09/1952 | 0 | 1 | 0 | 0 | 0 | ||
| 1951/1952 | English Division 3 South | Swindon Town | 2-1 | Gillingham | 01/03/1952 | 0 | 0 | 1 | 1 | 2 | |
| English Division 3 South | Gillingham | 4-0 | Swindon Town | 13/10/1951 | 1 | 0 | 0 | 4 | 0 | ||
| 1950/1951 | English Division 3 South | Gillingham | 2-1 | Swindon Town | 02/05/1951 | 1 | 0 | 0 | 2 | 1 | |
| English Division 3 South | Swindon Town | 2-0 | Gillingham | 28/04/1951 | 0 | 0 | 1 | 0 | 2 | ||
| 1937/1938 | English Division 3 South | Swindon Town | 3-0 | Gillingham | 05/02/1938 | 0 | 0 | 1 | 0 | 3 | |
| English Division 3 South | Gillingham | 0-0 | Swindon Town | 25/09/1937 | 0 | 1 | 0 | 0 | 0 | ||
| 1936/1937 | English Division 3 South | Gillingham | 4-1 | Swindon Town | 13/02/1937 | 1 | 0 | 0 | 4 | 1 | |
| English Division 3 South | Swindon Town | 3-0 | Gillingham | 10/10/1936 | 0 | 0 | 1 | 0 | 3 | ||
| 1935/1936 | English Division 3 South | Swindon Town | 3-0 | Gillingham | 18/04/1936 | 0 | 0 | 1 | 0 | 3 | |
| English Division 3 South | Gillingham | 3-1 | Swindon Town | 02/11/1935 | 1 | 0 | 0 | 3 | 1 | ||
| 1934/1935 | English Division 3 South | Gillingham | 2-0 | Swindon Town | 23/03/1935 | 1 | 0 | 0 | 2 | 0 | |
| English Division 3 South | Swindon Town | 3-0 | Gillingham | 10/11/1934 | 0 | 0 | 1 | 0 | 3 | ||
| 1933/1934 | English Division 3 South | Swindon Town | 3-1 | Gillingham | 24/03/1934 | 0 | 0 | 1 | 1 | 3 | |
| English Division 3 South | Gillingham | 3-3 | Swindon Town | 11/11/1933 | 0 | 1 | 0 | 3 | 3 | ||
| 1932/1933 | English Division 3 South | Swindon Town | 1-1 | Gillingham | 26/04/1933 | 0 | 1 | 0 | 1 | 1 | |
| English Division 3 South | Gillingham | 3-1 | Swindon Town | 22/04/1933 | 1 | 0 | 0 | 3 | 1 | ||
| 1931/1932 | English Division 3 South | Swindon Town | 4-0 | Gillingham | 09/04/1932 | 0 | 0 | 1 | 0 | 4 | |
| English Division 3 South | Gillingham | 2-1 | Swindon Town | 09/01/1932 | 1 | 0 | 0 | 2 | 1 | ||
| 1930/1931 | English Division 3 South | Swindon Town | 5-2 | Gillingham | 21/03/1931 | 0 | 0 | 1 | 2 | 5 | |
| English Division 3 South | Gillingham | 0-1 | Swindon Town | 15/11/1930 | 0 | 0 | 1 | 0 | 1 | ||
| 1929/1930 | English Division 3 South | Swindon Town | 3-0 | Gillingham | 22/02/1930 | 0 | 0 | 1 | 0 | 3 | |
| English Division 3 South | Gillingham | 0-0 | Swindon Town | 19/10/1929 | 0 | 1 | 0 | 0 | 0 | ||
| 1928/1929 | English Division 3 South | Gillingham | 0-0 | Swindon Town | 23/02/1929 | 0 | 1 | 0 | 0 | 0 | |
| English Division 3 South | Swindon Town | 2-1 | Gillingham | 13/10/1928 | 0 | 0 | 1 | 1 | 2 | ||
| 1927/1928 | English Division 3 South | Swindon Town | 6-1 | Gillingham | 09/04/1928 | 0 | 0 | 1 | 1 | 6 | |
| English Division 3 South | Gillingham | 0-1 | Swindon Town | 06/04/1928 | 0 | 0 | 1 | 0 | 1 | ||
| 1926/1927 | English Division 3 South | Gillingham | 4-4 | Swindon Town | 09/04/1927 | 0 | 1 | 0 | 4 | 4 | |
| English Division 3 South | Swindon Town | 1-0 | Gillingham | 20/11/1926 | 0 | 0 | 1 | 0 | 1 | ||
| 1925/1926 | English Division 3 South | Swindon Town | 1-0 | Gillingham | 23/01/1926 | 0 | 0 | 1 | 0 | 1 | |
| English Division 3 South | Gillingham | 0-1 | Swindon Town | 12/09/1925 | 0 | 0 | 1 | 0 | 1 | ||
| 1924/1925 | English Division 3 South | Swindon Town | 2-0 | Gillingham | 14/02/1925 | 0 | 0 | 1 | 0 | 2 | |
| English Division 3 South | Gillingham | 1-1 | Swindon Town | 11/10/1924 | 0 | 1 | 0 | 1 | 1 | ||
| 1923/1924 | English Division 3 South | Swindon Town | 4-1 | Gillingham | 21/04/1924 | 0 | 0 | 1 | 1 | 4 | |
| English Division 3 South | Gillingham | 1-0 | Swindon Town | 18/04/1924 | 1 | 0 | 0 | 1 | 0 | ||
| 1922/1923 | English Division 3 South | Swindon Town | 0-1 | Gillingham | 11/11/1922 | 1 | 0 | 0 | 1 | 0 | |
| English Division 3 South | Gillingham | 0-0 | Swindon Town | 04/11/1922 | 0 | 1 | 0 | 0 | 0 | ||
| 1921/1922 | English Division 3 South | Swindon Town | 0-0 | Gillingham | 20/03/1922 | 0 | 1 | 0 | 0 | 0 | |
| English Division 3 South | Gillingham | 2-2 | Swindon Town | 24/12/1921 | 0 | 1 | 0 | 2 | 2 | ||
| 1920/1921 | English Division 3 (old) | Gillingham | 1-1 | Swindon Town | 13/04/1921 | 0 | 1 | 0 | 1 | 1 | |
| English Division 3 (old) | Swindon Town | 1-1 | Gillingham | 11/12/1920 | 0 | 1 | 0 | 1 | 1 | ||
| Year | Competition | Home | Away | Date | Win | Draw | Loss | Gills Gls | Away Gls | ||
| 1937/1938 | FA Cup 1st Rd | Gillingham | 3-4 | Swindon Town | 27/11/1937 | 0 | 0 | 1 | 3 | 4 | |
| League | W | D | L | GF | GA | ||||||
| Home | 21 | 15 | 4 | 66 | 34 | ||||||
| Away | 5 | 10 | 26 | 30 | 80 | ||||||