Mercedes 1-2 as expected in Canadian GP opening practice
 |
| Mercedes has more power now. Their advantage is huge. Hamilton is guaranteed a win |
Mercedes chose Montreal to unleash their first power unit upgrade of the season – and both Lewis Hamilton and Valtteri Bottas used it to good effect in the first free practice session of the Canadian Grand Prix weekend, as they finished one-two and comfortably clear of the third-placed Ferrari of Charles Leclerc.
Bottas was just 0.147s behind his team mate – although he ended the session with a suspected fuel pressure issue – while Leclerc was a full 0.953s away from Hamilton – although it appeared that there was more pace in the locker for both the Monegasque and team mate Sebastian Vettel who ended up fifth, the two Ferraris sandwiching the Red Bull of Max Verstappen, who was 0.988s off Hamilton in fourth.
Practice 1 Results
| POS | NO | DRIVER | CAR | TIME | GAP | LAPS |
| 1 | 44 | Lewis Hamilton | MERCEDES | 1:12.767 | +0.000s | 31 |
| 2 | 77 | Valtteri Bottas | MERCEDES | 1:12.914 | +0.147s | 25 |
| 3 | 16 | Charles Leclerc | FERRARI | 1:13.720 | +0.953s | 24 |
| 4 | 33 | Max Verstappen | RED BULL RACING HONDA | 1:13.755 | +0.988s | 26 |
| 5 | 5 | Sebastian Vettel | FERRARI | 1:13.905 | +1.138s | 28 |
| 6 | 7 | Kimi Raikkonen | ALFA ROMEO RACING FERRARI | 1:13.945 | +1.178s | 30 |
| 7 | 55 | Carlos Sainz | MCLAREN RENAULT | 1:13.973 | +1.206s | 34 |
| 8 | 3 | Daniel Ricciardo | RENAULT | 1:14.123 | +1.356s | 31 |
| 9 | 11 | Sergio Perez | RACING POINT BWT MERCEDES | 1:14.172 | +1.405s | 31 |
| 10 | 20 | Kevin Magnussen | HAAS FERRARI | 1:14.202 | +1.435s | 32 |
| 11 | 4 | Lando Norris | MCLAREN RENAULT | 1:14.246 | +1.479s | 33 |
| 12 | 27 | Nico Hulkenberg | RENAULT | 1:14.474 | +1.707s | 30 |
| 13 | 10 | Pierre Gasly | RED BULL RACING HONDA | 1:14.570 | +1.803s | 27 |
| 14 | 99 | Antonio Giovinazzi | ALFA ROMEO RACING FERRARI | 1:14.582 | +1.815s | 17 |
| 15 | 8 | Romain Grosjean | HAAS FERRARI | 1:14.645 | +1.878s | 31 |
| 16 | 23 | Alexander Albon | SCUDERIA TORO ROSSO HONDA | 1:14.703 | +1.936s | 36 |
| 17 | 18 | Lance Stroll | RACING POINT BWT MERCEDES | 1:14.812 | +2.045s | 32 |
| 18 | 26 | Daniil Kvyat | SCUDERIA TORO ROSSO HONDA | 1:15.343 | +2.576s | 32 |
| 19 | 63 | George Russell | WILLIAMS MERCEDES | 1:15.989 | +3.222s | 29 |
| 20 | 40 | Nicholas Latifi | WILLIAMS MERCEDES | 1:16.199 | +3.432s | 33 |