Hasil latihan bebas 1 MotoGP Inggris 2018, sirkuit Silverstone Jumat 4 Agustus 2018.
| Pos. | Num. | Pembalap | Negara | Tim | Motor | Km/h | Waktu | Gap 1st/Prev. |
| 1 | 25 | Maverick VIÑALES | SPA | Movistar Yamaha MotoGP | Yamaha | 322.4 | 2’02.073 | |
| 2 | 46 | Valentino ROSSI | ITA | Movistar Yamaha MotoGP | Yamaha | 316.6 | 2’02.262 | 0.189 / 0.189 |
| 3 | 4 | Andrea DOVIZIOSO | ITA | Ducati Team | Ducati | 325.6 | 2’02.263 | 0.190 / 0.001 |
| 4 | 35 | Cal CRUTCHLOW | GBR | LCR Honda CASTROL | Honda | 325.4 | 2’02.401 | 0.328 / 0.138 |
| 5 | 43 | Jack MILLER | AUS | Alma Pramac Racing | Ducati | 317.2 | 2’02.973 | 0.900 / 0.572 |
| 6 | 99 | Jorge LORENZO | SPA | Ducati Team | Ducati | 323.2 | 2’03.115 | 1.042 / 0.142 |
| 7 | 53 | Tito RABAT | SPA | Reale Avintia Racing | Ducati | 321.6 | 2’03.136 | 1.063 / 0.021 |
| 8 | 29 | Andrea IANNONE | ITA | Team SUZUKI ECSTAR | Suzuki | 317.1 | 2’03.207 | 1.134 / 0.071 |
| 9 | 5 | Johann ZARCO | FRA | Monster Yamaha Tech 3 | Yamaha | 316.9 | 2’03.243 | 1.170 / 0.036 |
| 10 | 93 | Marc MARQUEZ | SPA | Repsol Honda Team | Honda | 320.2 | 2’03.699 | 1.626 / 0.456 |
| 11 | 19 | Alvaro BAUTISTA | SPA | Angel Nieto Team | Ducati | 317.4 | 2’03.886 | 1.813 / 0.187 |
| 12 | 38 | Bradley SMITH | GBR | Red Bull KTM Factory Racing | KTM | 316.4 | 2’04.013 | 1.940 / 0.127 |
| 13 | 41 | Aleix ESPARGARO | SPA | Aprilia Racing Team Gresini | Aprilia | 320.1 | 2’04.105 | 2.032 / 0.092 |
| 14 | 30 | Takaaki NAKAGAMI | JPN | LCR Honda IDEMITSU | Honda | 312 | 2’04.112 | 2.039 / 0.007 |
| 15 | 9 | Danilo PETRUCCI | ITA | Alma Pramac Racing | Ducati | 321.6 | 2’04.170 | 2.097 / 0.058 |
| 16 | 42 | Alex RINS | SPA | Team SUZUKI ECSTAR | Suzuki | 316.9 | 2’04.567 | 2.494 / 0.397 |
| 17 | 26 | Dani PEDROSA | SPA | Repsol Honda Team | Honda | 319.3 | 2’04.601 | 2.528 / 0.034 |
| 18 | 45 | Scott REDDING | GBR | Aprilia Racing Team Gresini | Aprilia | 312.5 | 2’04.966 | 2.893 / 0.365 |
| 19 | 12 | Thomas LUTHI | SWI | EG 0,0 Marc VDS | Honda | 314.2 | 2’05.013 | 2.940 / 0.047 |
| 20 | 21 | Franco MORBIDELLI | ITA | EG 0,0 Marc VDS | Honda | 315 | 2’05.146 | 3.073 / 0.133 |
| 21 | 17 | Karel ABRAHAM | CZE | Angel Nieto Team | Ducati | 318.6 | 2’05.389 | 3.316 / 0.243 |
| 22 | 55 | Hafizh SYAHRIN | MAL | Monster Yamaha Tech 3 | Yamaha | 313.7 | 2’05.448 | 3.375 / 0.059 |
| 23 | 10 | Xavier SIMEON | BEL | Reale Avintia Racing | Ducati | 315.3 | 2’06.214 | 4.141 / 0.766 |
| 24 | 76 | Loris BAZ | FRA | Red Bull KTM Factory Racing | KTM | 310.2 | 2’06.731 | 4.658 / 0.517 |
