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Jorge Lorenzo meraih pole keempatnya pada musim ini di MotoGP Aragon 2018, mengalahkan rekan satu timnya, Andrea Dovizioso dengan selisih 0,014 detik, sementara itu Valentino Rossi akan memulai start dari posisi ke-18.
Rossi hanya mampu menadi tercepat kelima setelah Q1 dimulai, setengah detik lebih lambat dari Vinales, dan kemudian di menit – menit akhir sesi Rossi terjatuh dan kehabisan waktu untuk memperbaiki catatan waktunya.
Rossi harus memulai balapan dari posisi 18, start terendah Rossi sejak ia mendapat hukuman memulai balapan dari grid paling belakang saat penentuan juara dunia 2015 di Valencia.
Berikut hasil lengakap Kualifikasi MotoGP Aragon 2018:
| POS | RIDER | TEAM | BIKE | TIME | GAP |
|---|---|---|---|---|---|
| 1 | Jorge Lorenzo | Ducati | Ducati | 1m46.881s | – |
| 2 | Andrea Dovizioso | Ducati | Ducati | 1m46.895s | 0.014s |
| 3 | Marc Marquez | Honda | Honda | 1m46.960s | 0.079s |
| 4 | Cal Crutchlow | LCR Honda | Honda | 1m47.146s | 0.265s |
| 5 | Andrea Iannone | Suzuki | Suzuki | 1m47.169s | 0.288s |
| 6 | Dani Pedrosa | Honda | Honda | 1m47.224s | 0.343s |
| 7 | Danilo Petrucci | Pramac Ducati | Ducati | 1m47.351s | 0.470s |
| 8 | Alvaro Bautista | Aspar Ducati | Ducati | 1m47.678s | 0.797s |
| 9 | Alex Rins | Suzuki | Suzuki | 1m47.737s | 0.856s |
| 10 | Jack Miller | Pramac Ducati | Ducati | 1m47.792s | 0.911s |
| 11 | Maverick Vinales | Yamaha | Yamaha | 1m47.810s | 0.929s |
| 12 | Takaaki Nakagami | LCR Honda | Honda | 1m48.284s | 1.403s |
| 13 | Franco Morbidelli | MVDS Honda | Honda | 1m48.009s | 1.128s |
| 14 | Johann Zarco | Tech3 Yamaha | Yamaha | 1m48.052s | 1.171s |
| 15 | Aleix Espargaro | Aprilia | Aprilia | 1m48.181s | 1.300s |
| 16 | Bradley Smith | KTM | KTM | 1m48.216s | 1.335s |
| 17 | Karel Abraham | Aspar Ducati | Ducati | 1m48.398s | 1.517s |
| 18 | Valentino Rossi | Yamaha | Yamaha | 1m48.627s | 1.746s |
| 19 | Hafizh Syahrin | Tech3 Yamaha | Yamaha | 1m48.975s | 2.094s |
| 20 | Thomas Luthi | MVDS Honda | Honda | 1m48.988s | 2.107s |
| 21 | Scott Redding | Aprilia | Aprilia | 1m49.303s | 2.422s |
| 22 | Xavier Simeon | Avintia Ducati | Ducati | 1m49.699s | 2.818s |
| 23 | Jordi Torres | Avintia Ducati | Ducati | 1m50.336s | 3.455s |
