JJ Lehto Formula One results at Montreal
| Year | Race # | Start | Finish | Car # | Team | Chassis | Engine | Tyre | Owner | Qualifying Time | Laps | X Led | Laps Led | Status | Points |
| 1990 | 5 | 22 | 17 | 36 | Monteverdi Onyx Formula | Onyx ORE-2 | Ford DFR | Goodyear | Onyx | 1:24.425 | 46 | 0 | 0 | engine | 0 |
| 1991 | 5 | 17 | 12 | 22 | Scuderia Italia SpA | Dallara 191 | Judd GV | Pirelli | Scuderia Italia | 1:23.040 | 50 | 0 | 0 | engine | 0 |
| 1992 | 7 | 23 | 9 | 21 | Scuderia Italia SpA | Dallara 192 | Ferrari Type 037 | Goodyear | Scuderia Italia | 1:23.249 | 68 | 0 | 0 | +1 lap | 0 |
| 1993 | 7 | 11 | 7 | 30 | Sauber AG | Sauber C12 | Sauber 2175 | Goodyear | Sauber | 1:22.198 | 68 | 0 | 0 | +1 lap | 0 |
| 1994 | 6 | 20 | 6 | 6 | Mild Seven Benetton Ford | Benetton B194 | Ford ECA Zetec-R | Goodyear | Benetton | 1:28.993 | 68 | 0 | 0 | +1 lap | 1 |
