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Jan Opperman - Results By Track/Series
Track
Series
Race/Speedweek
Year
Races: 15
Wins: 3
Top 5: 8
Top 10: 9
Payout: $0 (Note, could be incomplete)
Totals
| Races | Avg Finish | Wins | Top 5 | Top 10 | Money |
| 1980 | 1 | 19.0 | | | | |
| 1979 | 1 | 37.0 | | | | |
| 1978 | 3 | 68.7 | | | | |
| 1975 | 2 | 3.0 | 1 | 2 | 2 | |
| 1974 | 3 | 11.7 | | 1 | 2 | |
| 1973 | 2 | 1.5 | 1 | 2 | 2 | |
| 1971 | 1 | 1.0 | 1 | 1 | 1 | |
| 1970 | 1 | 4.0 | | 1 | 1 | |
| 1969 | 1 | 2.0 | | 1 | 1 | |
Results
Count: 15
| Race Date | Class | Series | Track | Race | Finish | Time Trial | Feature Start |
| Saturday, August 16, 1969 | Wingless | | Knoxville,IA | Knoxville Nationals | 2 | | 7 |
| Saturday, August 15, 1970 | Wingless | | Knoxville,IA | Knoxville Nationals | 4 | | 2 |
| Saturday, August 14, 1971 | Wingless | | Knoxville,IA | Knoxville Nationals | 1 | | 1 |
| Thursday, August 9, 1973 | Wingless | | Knoxville,IA | Knoxville Nationals Prelim | 1 | | |
| Saturday, August 11, 1973 | Wingless | AS | Knoxville,IA | Knoxville Nationals | 2 | | 3 |
| Saturday, June 1, 1974 | Wingless | | Knoxville,IA | | 10 | 2 | 5 |
| Friday, August 9, 1974 | Wingless | | Knoxville,IA | Knoxville Nationals Prelim | 23 | 1 | |
| Saturday, August 10, 1974 | Wingless | | Knoxville,IA | Knoxville Nationals | 2 | | 2 |
| Wednesday, August 6, 1975 | Wingless | | Knoxville,IA | Knoxville Nationals Prelim | 1 | 4 | 5 |
| Saturday, August 9, 1975 | Wingless | | Knoxville,IA | Knoxville Nationals | 5 | | 7 |
| Thursday, August 10, 1978 | Wingless | WoO | Knoxville,IA | Knoxville Nationals Prelim | 61 | 60 | |
| Friday, August 11, 1978 | Wingless | | Knoxville,IA | Knoxville Nationals Friday | 29 | | |
| Saturday, August 12, 1978 | Wingless | WoO | Knoxville,IA | Knoxville Nationals | 116 | | |
| Saturday, June 30, 1979 | Wingless | | Knoxville,IA | | 37 | 37 | |
| Saturday, September 20, 1980 | Wing | WoO | Knoxville,IA | | 19 | 18 | 14 |
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