Henley Gray at Michigan
Henley Gray has made 13 NASCAR Cup Series starts at Michigan since 1969, with 0 wins, 0 top-10s and an average finish of 27.7.
Totals at Michigan by series
| Series | Starts | Wins | Top 5 | Top 10 | Laps led | Avg finish | Avg start | Best finish |
|---|
| Cup Series | 13 | 0 | 0 | 0 | 2 | 27.7 | 29.9 | 11 |
Every start at Michigan
| Date | Race | Series | Start | Finish | Laps led | Status |
|---|
| June 19, 1977 | 1977 Cam 2 Motor Oil 400 | Winston Cup Series | 32 | 22 | 0 | Running |
| August 22, 1976 | 1976 Champion Spark Plug 400 | Winston Cup Series | 24 | 11 | 0 | Running |
| June 20, 1976 | 1976 Cam 2 Motor Oil 400 | Winston Cup Series | 23 | 33 | 0 | Ignition |
| August 24, 1975 | 1975 Champion Spark Plug 400 | Winston Cup Series | 17 | 27 | 2 | Rear end |
| June 16, 1974 | 1974 Motor State 360 | Winston Cup Series | 30 | 22 | 0 | Oil cooler |
| June 24, 1973 | 1973 Motor State 400 | Winston Cup Series | 38 | 34 | 0 | Engine |
| August 20, 1972 | 1972 Yankee 400 | Winston Cup Series | 37 | 24 | 0 | Running |
| August 15, 1971 | 1971 Yankee 400 | Winston Cup Series | 23 | 37 | 0 | Suspension |
| June 13, 1971 | 1971 Motor State 400 | Winston Cup Series | 26 | 21 | 0 | Running |
| August 16, 1970 | 1970 Yankee 400 | Grand National Series | 35 | 35 | 0 | Engine |
| June 7, 1970 | 1970 Motor State 400 | Grand National Series | 33 | 34 | 0 | Overheating |
| August 17, 1969 | 1969 Yankee 600 | Grand National Series | 37 | 42 | 0 | Engine |
| June 15, 1969 | 1969 Motor State 500 | Grand National Series | 34 | 18 | 0 | Engine |