Hasil Latihan bebas 4 MotoGP Australia 2018, Sabtu 27 Oktober 2018
| Pos. | Num. | Pembalap | Negara | Tim | Motor | Km/h | Waktu | Gap 1st/Prev. |
| 1 | 29 | Andrea IANNONE | ITA | Team SUZUKI ECSTAR | Suzuki | 335.8 | 1’29.604 | |
| 2 | 25 | Maverick VIÑALES | SPA | Movistar Yamaha MotoGP | Yamaha | 333.7 | 1’30.148 | 0.544 / 0.544 |
| 3 | 46 | Valentino ROSSI | ITA | Movistar Yamaha MotoGP | Yamaha | 337.1 | 1’30.292 | 0.688 / 0.144 |
| 4 | 4 | Andrea DOVIZIOSO | ITA | Ducati Team | Ducati | 339.1 | 1’30.299 | 0.695 / 0.007 |
| 5 | 5 | Johann ZARCO | FRA | Monster Yamaha Tech 3 | Yamaha | 333.4 | 1’30.399 | 0.795 / 0.100 |
| 6 | 93 | Marc MARQUEZ | SPA | Repsol Honda Team | Honda | 337 | 1’30.478 | 0.874 / 0.079 |
| 7 | 42 | Alex RINS | SPA | Team SUZUKI ECSTAR | Suzuki | 334.5 | 1’30.531 | 0.927 / 0.053 |
| 8 | 55 | Hafizh SYAHRIN | MAL | Monster Yamaha Tech 3 | Yamaha | 326 | 1’30.887 | 1.283 / 0.356 |
| 9 | 9 | Danilo PETRUCCI | ITA | Alma Pramac Racing | Ducati | 337 | 1’31.043 | 1.439 / 0.156 |
| 10 | 19 | Alvaro BAUTISTA | SPA | Ducati Team | Ducati | 333.3 | 1’31.087 | 1.483 / 0.044 |
| 11 | 10 | Xavier SIMEON | BEL | Reale Avintia Racing | Ducati | 330 | 1’31.268 | 1.664 / 0.181 |
| 12 | 30 | Takaaki NAKAGAMI | JPN | LCR Honda IDEMITSU | Honda | 328.9 | 1’31.292 | 1.688 / 0.024 |
| 13 | 45 | Scott REDDING | GBR | Aprilia Racing Team Gresini | Aprilia | 329.1 | 1’31.293 | 1.689 / 0.001 |
| 14 | 26 | Dani PEDROSA | SPA | Repsol Honda Team | Honda | 323.8 | 1’31.404 | 1.800 / 0.111 |
| 15 | 21 | Franco MORBIDELLI | ITA | EG 0,0 Marc VDS | Honda | 328.2 | 1’31.499 | 1.895 / 0.095 |
| 16 | 41 | Aleix ESPARGARO | SPA | Aprilia Racing Team Gresini | Aprilia | 329.9 | 1’31.662 | 2.058 / 0.163 |
| 17 | 38 | Bradley SMITH | GBR | Red Bull KTM Factory Racing | KTM | 331.4 | 1’31.706 | 2.102 / 0.044 |
| 18 | 17 | Karel ABRAHAM | CZE | Angel Nieto Team | Ducati | 329.6 | 1’31.781 | 2.177 / 0.075 |
| 19 | 43 | Jack MILLER | AUS | Alma Pramac Racing | Ducati | 332.6 | 1’31.802 | 2.198 / 0.021 |
| 20 | 12 | Thomas LUTHI | SWI | EG 0,0 Marc VDS | Honda | 324.5 | 1’31.883 | 2.279 / 0.081 |
| 21 | 44 | Pol ESPARGARO | SPA | Red Bull KTM Factory Racing | KTM | 332.4 | 1’31.946 | 2.342 / 0.063 |
| 22 | 81 | Jordi TORRES | SPA | Reale Avintia Racing | Ducati | 335.4 | 1’32.065 | 2.461 / 0.119 |
| 23 | 7 | Mike JONES | AUS | Angel Nieto Team | Ducati | 327.6 | 1’33.237 | 3.633 / 1.172 |
