Bobby Isaac at Michigan
Bobby Isaac has made 8 NASCAR Cup Series starts at Michigan since 1969, with 0 wins, 5 top-10s and an average finish of 14.1.
Totals at Michigan by series
| Series | Starts | Wins | Top 5 | Top 10 | Laps led | Avg finish | Avg start | Best finish |
|---|---|---|---|---|---|---|---|---|
| Cup Series | 8 | 0 | 4 | 5 | 102 | 14.1 | 3.1 | 2 |
Every start at Michigan
| Date | Race | Series | Start | Finish | Laps led | Status |
|---|---|---|---|---|---|---|
| August 20, 1972 | 1972 Yankee 400 | Winston Cup Series | 2 | 3 | 34 | Running |
| June 11, 1972 | 1972 Motor State 400 | Winston Cup Series | 1 | 26 | 14 | Suspension |
| August 15, 1971 | 1971 Yankee 400 | Winston Cup Series | 3 | 39 | 1 | Water pump |
| June 13, 1971 | 1971 Motor State 400 | Winston Cup Series | 4 | 2 | 25 | Running |
| August 16, 1970 | 1970 Yankee 400 | Grand National Series | 2 | 4 | 1 | Running |
| June 7, 1970 | 1970 Motor State 400 | Grand National Series | 6 | 5 | 12 | Running |
| August 17, 1969 | 1969 Yankee 600 | Grand National Series | 4 | 6 | 15 | Running |
| June 15, 1969 | 1969 Motor State 500 | Grand National Series | 3 | 28 | 0 | Engine |