Walter Ballard at Ontario Motor Speedway
Walter Ballard has made 3 NASCAR Cup Series starts at Ontario Motor Speedway since 1972, with 0 wins, 0 top-10s and an average finish of 27.7.
Totals at Ontario Motor Speedway by series
| Series | Starts | Wins | Top 5 | Top 10 | Laps led | Avg finish | Avg start | Best finish |
|---|---|---|---|---|---|---|---|---|
| Cup Series | 3 | 0 | 0 | 0 | 0 | 27.7 | 31.7 | 16 |
Every start at Ontario Motor Speedway
| Date | Race | Series | Start | Finish | Laps led | Status |
|---|---|---|---|---|---|---|
| November 23, 1975 | 1975 Los Angeles Times 500 | Winston Cup Series | 27 | 20 | 0 | Engine |
| November 24, 1974 | 1974 Los Angeles Times 500 | Winston Cup Series | 24 | 16 | 0 | Running |
| March 5, 1972 | 1972 Miller High Life 500 | Winston Cup Series | 44 | 47 | 0 | Crash |