Andrea Iannone memimpin FP2 MotoGP Australia 2018, sementara itu Cal Crutchlow jatuh saat sesu hampir berakhir.
Posisi teratas berpindah tangan secara terus menerus selama 45 menit, dengan Iannone yang berhasil menempatkan Suzuki di puncak dengan catatan waktu 1 m 29.131 detik. Berikut hasil lengkap FP2 MotoGP Australia 2018:
| Pos | Rider | Team | Bike | Time | Gap | Laps |
|---|---|---|---|---|---|---|
| 1 | Andrea Iannone | Suzuki | Suzuki | 1m29.131s | – | 19 |
| 2 | Danilo Petrucci | Pramac Ducati | Ducati | 1m29.291s | 0.160s | 21 |
| 3 | Maverick Vinales | Yamaha | Yamaha | 1m29.354s | 0.223s | 21 |
| 4 | Andrea Dovizioso | Ducati | Ducati | 1m29.406s | 0.275s | 20 |
| 5 | Cal Crutchlow | LCR Honda | Honda | 1m29.616s | 0.485s | 16 |
| 6 | Johann Zarco | Tech3 Yamaha | Yamaha | 1m29.686s | 0.555s | 20 |
| 7 | Marc Marquez | Honda | Honda | 1m29.739s | 0.608s | 24 |
| 8 | Jack Miller | Pramac Ducati | Ducati | 1m29.838s | 0.707s | 20 |
| 9 | Alex Rins | Suzuki | Suzuki | 1m29.918s | 0.787s | 23 |
| 10 | Valentino Rossi | Yamaha | Yamaha | 1m30.133s | 1.002s | 21 |
| 11 | Hafizh Syahrin | Tech3 Yamaha | Yamaha | 1m30.179s | 1.048s | 20 |
| 12 | Bradley Smith | KTM | KTM | 1m30.346s | 1.215s | 24 |
| 13 | Dani Pedrosa | Honda | Honda | 1m30.472s | 1.341s | 21 |
| 14 | Pol Espargaro | KTM | KTM | 1m30.545s | 1.414s | 20 |
| 15 | Alvaro Bautista | Ducati | Ducati | 1m30.734s | 1.603s | 5 |
| 16 | Aleix Espargaro | Aprilia | Aprilia | 1m30.736s | 1.605s | 22 |
| 17 | Franco Morbidelli | MVDS Honda | Honda | 1m30.787s | 1.656s | 21 |
| 18 | Takaaki Nakagami | LCR Honda | Honda | 1m30.830s | 1.699s | 19 |
| 19 | Karel Abraham | Aspar Ducati | Ducati | 1m31.166s | 2.035s | 18 |
| 20 | Xavier Simeon | Avintia Ducati | Ducati | 1m31.275s | 2.144s | 22 |
| 21 | Thomas Luthi | MVDS Honda | Honda | 1m31.539s | 2.408s | 20 |
| 22 | Jordi Torres | Avintia Ducati | Ducati | 1m31.570s | 2.439s | 21 |
| 23 | Scott Redding | Aprilia | Aprilia | 1m32.045s | 2.914s | 9 |
| 24 | Mike Jones | Aspar Ducati | Ducati | 1m33.633s | 4.502s | 23 |
