SINGAPORE Grand Prix 2023: practice-1
| pos | no | driver | time | gap | laps |
| 1 | 16 | Leclerc | 1:33.350 | | 25 |
| 2 | 55 | Sainz | 1:33.428 | +0.078s | 24 |
| 3 | 1 | Verstappen | 1:33.476 | +0.126s | 22 |
| 4 | 4 | Norris | 1:33.522 | +0.172s | 24 |
| 5 | 44 | Hamilton | 1:33.540 | +0.190s | 21 |
| 6 | 63 | Russell | 1:33.695 | +0.345s | 25 |
| 7 | 11 | Perez | 1:33.725 | +0.375s | 22 |
| 8 | 14 | Alonso | 1:33.974 | +0.624s | 28 |
| 9 | 22 | Tsunoda | 1:34.042 | +0.692s | 25 |
| 10 | 31 | Ocon | 1:34.066 | +0.716s | 24 |
| 11 | 18 | Stroll | 1:34.568 | +1.218s | 25 |
| 12 | 10 | Gasly | 1:34.639 | +1.289s | 23 |
| 13 | 23 | Albon | 1:34.657 | +1.307s | 19 |
| 14 | 77 | Bottas | 1:34.802 | +1.452s | 25 |
| 15 | 20 | Magnussen | 1:34.887 | +1.537s | 23 |
| 16 | 40 | Lawson | 1:34.894 | +1.544s | 27 |
| 17 | 27 | Hulkenberg | 1:34.985 | +1.635s | 22 |
| 18 | 24 | Zhou | 1:35.456 | +2.106s | 25 |
| 19 | 81 | Piastri | 1:35.474 | +2.124s | 22 |
| 20 | 2 | Sargeant | 1:35.778 | +2.428s | 24 |