Andrea Dovizioso meraih waktu tercepat dalam latihan bebas pertama MotoGP Aragon 2018, dan Ducati berjaya dengan menguasai posisi empat besar.
Berikut hasil lengakap FP1 MotoGP Aragon 2018:
| Pos | Rider | Team | Gap | Laps |
|---|---|---|---|---|
| 1 | Andrea Dovizioso | Ducati | 1m48.020s | 19 |
| 2 | Danilo Petrucci | Pramac Ducati | 0.190s | 18 |
| 3 | Jack Miller | Pramac Ducati | 0.714s | 19 |
| 4 | Jorge Lorenzo | Ducati | 0.731s | 17 |
| 5 | Maverick Vinales | Yamaha | 0.783s | 17 |
| 6 | Marc Marquez | Honda | 0.784s | 19 |
| 7 | Valentino Rossi | Yamaha | 0.938s | 19 |
| 8 | Johann Zarco | Tech3 Yamaha | 0.983s | 16 |
| 9 | Cal Crutchlow | LCR Honda | 1.108s | 17 |
| 10 | Andrea Iannone | Suzuki | 1.221s | 20 |
| 11 | Alex Rins | Suzuki | 1.419s | 20 |
| 12 | Pol Espargaro | KTM | 1.506s | 17 |
| 13 | Aleix Espargaro | Aprilia | 1.617s | 18 |
| 14 | Alvaro Bautista | Aspar Ducati | 1.619s | 19 |
| 15 | Karel Abraham | Aspar Ducati | 1.628s | 17 |
| 16 | Scott Redding | Aprilia | 1.760s | 16 |
| 17 | Bradley Smith | KTM | 1.880s | 16 |
| 18 | Dani Pedrosa | Honda | 1.924s | 19 |
| 19 | Takaaki Nakagami | LCR Honda | 2.050s | 18 |
| 20 | Thomas Luthi | MVDS Honda | 2.199s | 18 |
| 21 | Xavier Simeon | Avintia Ducati | 2.294s | 15 |
| 22 | Franco Morbidelli | MVDS Honda | 2.357s | 17 |
| 23 | Hafizh Syahrin | Tech3 Yamaha | 2.674s | 14 |
| 24 | Jordi Torres | Avintia Ducati | 4.803s | 18 |
