Ronnie Thomas at Riverside International Raceway
Ronnie Thomas has made 8 NASCAR Cup Series starts at Riverside International Raceway since 1978, with 0 wins, 1 top-10 and an average finish of 22.5.
Totals at Riverside International Raceway by series
| Series | Starts | Wins | Top 5 | Top 10 | Laps led | Avg finish | Avg start | Best finish |
|---|---|---|---|---|---|---|---|---|
| Cup Series | 8 | 0 | 0 | 1 | 0 | 22.5 | 24.1 | 10 |
Every start at Riverside International Raceway
| Date | Race | Series | Start | Finish | Laps led | Status |
|---|---|---|---|---|---|---|
| November 20, 1983 | 1983 Winston Western 500 | Winston Cup Series | 31 | 27 | 0 | Differential |
| June 5, 1983 | 1983 Budweiser 400 | Winston Cup Series | 32 | 33 | 0 | Engine |
| June 14, 1981 | 1981 Warner W. Hodgdon 400 | Winston Cup Series | 34 | 34 | 0 | Engine |
| June 8, 1980 | 1980 Warner W. Hodgdon 400 | Winston Cup Series | 16 | 16 | 0 | Running |
| January 13, 1980 | 1980 Winston Western 500 | Winston Cup Series | 14 | 10 | 0 | Running |
| June 10, 1979 | 1979 NAPA Riverside 400 | Winston Cup Series | 18 | 23 | 0 | Running |
| January 14, 1979 | 1979 Winston Western 500 | Winston Cup Series | 24 | 12 | 0 | Running |
| June 11, 1978 | 1978 NAPA 400 | Winston Cup Series | 24 | 25 | 0 | Transmission |