Harry Jefferson at Riverside International Raceway
Harry Jefferson has made 4 NASCAR Cup Series starts at Riverside International Raceway since 1973, with 0 wins, 0 top-10s and an average finish of 32.0.
Totals at Riverside International Raceway by series
| Series | Starts | Wins | Top 5 | Top 10 | Laps led | Avg finish | Avg start | Best finish |
|---|---|---|---|---|---|---|---|---|
| Cup Series | 4 | 0 | 0 | 0 | 0 | 32 | 17.5 | 27 |
Every start at Riverside International Raceway
| Date | Race | Series | Start | Finish | Laps led | Status |
|---|---|---|---|---|---|---|
| January 18, 1976 | 1976 Winston Western 500 | Winston Cup Series | 17 | 35 | 0 | Oil leak |
| January 19, 1975 | 1975 Winston Western 500 | Winston Cup Series | 8 | 32 | 0 | Engine |
| January 26, 1974 | 1974 Winston Western 500 | Winston Cup Series | 24 | 27 | 0 | Transmission |
| January 21, 1973 | 1973 Winston Western 500 | Winston Cup Series | 21 | 34 | 0 | Oil leak |