Astrodome
- Rounds
- 36
- Seasons
- 29
- First
- 1974
- Latest
- 2002
Every Round
| Season | Date | Race | 450 Winner | 250 Winner |
|---|---|---|---|---|
| 2002 | Mar 23 | Houston SX R11 | — | — |
| 2001 | Mar 24 | Houston SX R11 | — | — |
| 2000 | Feb 5 | Houston SX R5 | — | — |
| 1999 | Mar 13 | Houston SX R10 | — | — |
| 1998 | Jan 17 | Houston SX R2 | — | — |
| 1997 | Mar 22 | Houston SX R9 | — | — |
| 1996 | Mar 16 | Houston SX R8 | — | — |
| 1995 | Mar 25 | Houston SX R9 | — | — |
| 1994 | Jan 22 | Houston SX R2 | — | — |
| 1993 | Jan 16 | Houston SX R2 | — | — |
| 1992 | Jan 18 | Houston SX R2 | — | — |
| 1991 | Jan 19 | Houston SX R2 | — | — |
| 1990 | Feb 3 | Houston SX R2 | — | — |
| 1989 | Mar 18 | Houston SX R8 | — | — |
| 1988 | Feb 6 | Houston SX R1 | — | — |
| 1987 | Feb 7 | Houston SX R2 | — | — |
| 1986 | Feb 2 | Houston SX R2 | — | — |
| 1985 | Apr 20 | Houston SX R7 | — | — |
| 1984 | Mar 24 | Houston SX R7 | — | — |
| 1983 | Mar 20 | Houston 2 SX R7 | — | — |
| Mar 19 | Houston 1 SX R6 | — | — | |
| 1982 | Mar 20 | Houston 2 SX R7 | — | — |
| Mar 19 | Houston 1 SX R6 | — | — | |
| 1981 | Mar 14 | Houston 2 SX R7 | — | — |
| Mar 13 | Houston 1 SX R6 | — | — | |
| 1980 | Mar 15 | Houston 2 SX R7 | — | — |
| Mar 14 | Houston 1 SX R6 | — | — | |
| 1979 | Mar 17 | Houston 2 SX R7 | — | — |
| Mar 16 | Houston 1 SX R6 | — | — | |
| 1978 | Mar 18 | Houston 2 SX R5 | — | — |
| Mar 17 | Houston 1 SX R4 | — | — | |
| 1977 | Mar 19 | Houston 2 SX R4 | — | — |
| Mar 18 | Houston 1 SX R3 | — | — | |
| 1976 | Mar 12 | Houston SX R2 | — | — |
| 1975 | Mar 14 | Houston SX R3 | — | — |
| 1974 | Mar 15 | Houston SX R2 | — | — |