| At Chelsea (37) | At West Ham (37) | Overall (74 matches) | ||||||||
| Results | Total | % | Results | Total | % | Results | Total | % | ||
| Chelsea | 17 | 45.95 | West Ham | 21 | 56.76 | Chelsea | 26 | 35.14 | ||
| West Ham | 11 | 29.73 | Chelsea | 9 | 24.32 | West Ham | 32 | 43.24 | ||
| Draws | 9 | 24.32 | Draws | 7 | 18.92 | Draws | 16 | 21.62 | ||
| Goals | Total | Av.pg | Goals | Total | Av.pg | Goals | Total | Av.pg | ||
| Chelsea | 65 | 1.76 | West Ham | 74 | 2 | Chelsea | 111 | 1.5 | ||
| West Ham | 56 | 1.51 | Chelsea | 46 | 1.24 | West Ham | 130 | 1.76 | ||
| Records | |||||
| Highest Aggregate | 10 | Chelsea | 5 - 5 | West Ham | 1966/1967 |
| Highest Chelsea score: | 6 | Chelsea | 6 - 2 | West Ham | 1965/1966 |
| Highest West Ham score: | 5 | West Ham | 5 - 3 | Chelsea | 1986/1987 |
| Season | Date | Home | Score | Away | Competition |
| 2001/2002 | Wed 06 Feb | West Ham | 2 - 3 | Chelsea | F.A. Cup |
| Sat 26 Jan | Chelsea | 1 - 1 | West Ham | F.A. Cup | |
| Sun 20 Jan | Chelsea | 5 - 1 | West Ham | Premiership | |
| Wed 24 Oct | West Ham | 2 - 1 | Chelsea | Premiership | |
| 2000/2001 | Wed 07 Mar | West Ham | 0 - 2 | Chelsea | Premiership |
| Sat 19 Aug | Chelsea | 4 - 2 | West Ham | Premiership | |
| 1999/2000 | Sat 18 Mar | West Ham | 0 - 0 | Chelsea | Premiership |
| Sun 07 Nov | Chelsea | 0 - 0 | West Ham | Premiership | |
| 1998/1999 | Sat 13 Mar | Chelsea | 0 - 1 | West Ham | Premiership |
| Sun 08 Nov | West Ham | 1 - 1 | Chelsea | Premiership | |
| 1997/1998 | Sat 14 Mar | West Ham | 2 - 1 | Chelsea | Premiership |
| Sun 09 Nov | Chelsea | 2 - 1 | West Ham | Premiership | |
| 1996/1997 | Wed 12 Mar | West Ham | 3 - 2 | Chelsea | Premiership |
| Sat 21 Dec | Chelsea | 3 - 1 | West Ham | Premiership | |
| 1995/1996 | Sat 17 Feb | Chelsea | 1 - 2 | West Ham | Premiership |
| Mon 11 Sep | West Ham | 1 - 3 | Chelsea | Premiership | |
| 1994/1995 | Sat 25 Feb | West Ham | 1 - 2 | Chelsea | Premiership |
| Sun 02 Oct | Chelsea | 1 - 2 | West Ham | Premiership | |
| 1993/1994 | Sat 26 Mar | Chelsea | 2 - 0 | West Ham | Premiership |
| Sat 02 Oct | West Ham | 1 - 0 | Chelsea | Premiership | |
| 1991/1992 | Sat 04 Apr | Chelsea | 2 - 1 | West Ham | First Division |
| Sat 07 Sep | West Ham | 1 - 1 | Chelsea | First Division | |
| 1987/1988 | Mon 02 May | West Ham | 4 - 1 | Chelsea | First Division |
| Sat 12 Dec | Chelsea | 1 - 1 | West Ham | First Division | |
| 1986/1987 | Sat 21 Mar | Chelsea | 1 - 0 | West Ham | First Division |
| Sat 11 Oct | West Ham | 5 - 3 | Chelsea | First Division | |
| 1985/1986 | Tue 15 Apr | West Ham | 1 - 2 | Chelsea | First Division |
| Sat 29 Mar | Chelsea | 0 - 4 | West Ham | First Division | |
| 1984/1985 | Sat 13 Apr | West Ham | 1 - 1 | Chelsea | First Division |
| Sat 15 Sep | Chelsea | 3 - 0 | West Ham | First Division | |
| 1980/1981 | Sat 14 Feb | West Ham | 4 - 0 | Chelsea | Second Division |
| Sat 06 Sep | Chelsea | 0 - 1 | West Ham | Second Division | |
| 1979/1980 | Wed 14 Nov | Chelsea | 2 - 1 | West Ham | Second Division |
| Mon 20 Aug | West Ham | 0 - 1 | Chelsea | Second Division | |
| 1977/1978 | Sat 25 Mar | West Ham | 3 - 1 | Chelsea | First Division |
| Tue 27 Dec | Chelsea | 2 - 1 | West Ham | First Division | |
| 1974/1975 | Sat 29 Mar | West Ham | 0 - 1 | Chelsea | First Division |
| Sat 21 Dec | Chelsea | 1 - 1 | West Ham | First Division | |
| 1973/1974 | Sat 02 Mar | West Ham | 3 - 0 | Chelsea | First Division |
| Wed 26 Dec | Chelsea | 2 - 4 | West Ham | First Division | |
| 1972/1973 | Sat 27 Jan | West Ham | 3 - 1 | Chelsea | First Division |
| Sat 09 Sep | Chelsea | 1 - 3 | West Ham | First Division | |
| 1971/1972 | Sat 25 Mar | Chelsea | 3 - 1 | West Ham | First Division |
| Sat 11 Sep | West Ham | 2 - 1 | Chelsea | First Division | |
| 1970/1971 | Sat 19 Dec | Chelsea | 2 - 1 | West Ham | First Division |
| Sat 22 Aug | West Ham | 2 - 2 | Chelsea | First Division | |
| 1969/1970 | Wed 20 Aug | Chelsea | 0 - 0 | West Ham | First Division |
| Mon 11 Aug | West Ham | 2 - 0 | Chelsea | First Division | |
| 1968/1969 | Sat 12 Apr | West Ham | 0 - 0 | Chelsea | First Division |
| Sat 21 Sep | Chelsea | 1 - 1 | West Ham | First Division | |
| 1967/1968 | Sat 23 Mar | West Ham | 0 - 1 | Chelsea | First Division |
| Sat 28 Oct | Chelsea | 1 - 3 | West Ham | First Division | |
| 1966/1967 | Sat 17 Dec | Chelsea | 5 - 5 | West Ham | First Division |
| Sat 20 Aug | West Ham | 1 - 2 | Chelsea | First Division | |
| 1965/1966 | Sat 09 Apr | Chelsea | 6 - 2 | West Ham | First Division |
| Sat 13 Nov | West Ham | 2 - 1 | Chelsea | First Division | |
| 1964/1965 | Mon 12 Apr | West Ham | 3 - 2 | Chelsea | First Division |
| Sat 28 Nov | Chelsea | 0 - 3 | West Ham | First Division | |
| 1963/1964 | Sat 14 Dec | West Ham | 2 - 2 | Chelsea | First Division |
| Sat 24 Aug | Chelsea | 0 - 0 | West Ham | First Division | |
| 1961/1962 | Sat 03 Feb | Chelsea | 0 - 1 | West Ham | First Division |
| Sat 16 Sep | West Ham | 2 - 1 | Chelsea | First Division | |
| 1960/1961 | Sat 21 Jan | West Ham | 3 - 1 | Chelsea | First Division |
| Sat 10 Sep | Chelsea | 3 - 2 | West Ham | First Division | |
| 1959/1960 | Sat 06 Feb | West Ham | 4 - 2 | Chelsea | First Division |
| Sat 19 Sep | Chelsea | 2 - 4 | West Ham | First Division | |
| 1958/1959 | Sat 07 Feb | Chelsea | 3 - 2 | West Ham | First Division |
| Sat 20 Sep | West Ham | 4 - 2 | Chelsea | First Division | |
| 1931/1932 | Sat 07 May | Chelsea | 3 - 2 | West Ham | First Division |
| Mon 31 Aug | West Ham | 3 - 1 | Chelsea | First Division | |
| 1930/1931 | Sat 17 Jan | Chelsea | 2 - 1 | West Ham | First Division |
| Sat 13 Sep | West Ham | 4 - 1 | Chelsea | First Division | |
| 1923/1924 | Sat 27 Oct | West Ham | 2 - 0 | Chelsea | First Division |
| Sat 20 Oct | Chelsea | 0 - 0 | West Ham | First Division | |