Valentino Rossi memimpin dalam latihan bebas ketiga MotoGP 2018 Brno, sementara rekan setimnya di Yamaha Maverick Vinales gagal masuk Q2.
Berikut hasil lengkap FP3 MotoGP Brno 2018:
| Pos | Rider | Team | Bike | Gap | Laps |
|---|---|---|---|---|---|
| 1 | Valentino Rossi | Yamaha | Yamaha | 1m55.175s | 17 |
| 2 | Danilo Petrucci | Pramac Ducati | Ducati | 0.086s | 16 |
| 3 | Jorge Lorenzo | Ducati | Ducati | 0.151s | 16 |
| 4 | Marc Marquez | Honda | Honda | 0.283s | 17 |
| 5 | Andrea Iannone | Suzuki | Suzuki | 0.324s | 18 |
| 6 | Dani Pedrosa | Honda | Honda | 0.342s | 18 |
| 7 | Cal Crutchlow | LCR Honda | Honda | 0.442s | 16 |
| 8 | Johann Zarco | Tech3 Yamaha | Yamaha | 0.453s | 17 |
| 9 | Tito Rabat | Avintia Ducati | Ducati | 0.488s | 15 |
| 10 | Andrea Dovizioso | Ducati | Ducati | 0.546s | 16 |
| 11 | Maverick Vinales | Yamaha | Yamaha | 0.601s | 16 |
| 12 | Aleix Espargaro | Aprilia | Aprilia | 0.635s | 14 |
| 13 | Jack Miller | Pramac Ducati | Ducati | 0.666s | 18 |
| 14 | Alvaro Bautista | Aspar Ducati | Ducati | 0.741s | 19 |
| 15 | Franco Morbidelli | MVDS Honda | Honda | 0.758s | 14 |
| 16 | Hafizh Syahrin | Tech3 Yamaha | Yamaha | 0.838s | 14 |
| 17 | Alex Rins | Suzuki | Suzuki | 0.934s | 17 |
| 18 | Pol Espargaro | KTM | KTM | 1.105s | 16 |
| 19 | Bradley Smith | KTM | KTM | 1.311s | 16 |
| 20 | Stefan Bradl | Honda | Honda | 1.511s | 17 |
| 21 | Scott Redding | Aprilia | Aprilia | 1.727s | 14 |
| 22 | Karel Abraham | Aspar Ducati | Ducati | 1.789s | 15 |
| 23 | Takaaki Nakagami | LCR Honda | Honda | 1.833s | 16 |
| 24 | Sylvain Guintoli | Suzuki | Suzuki | 2.029s | 14 |
| 25 | Thomas Luthi | MVDS Honda | Honda | 2.147s | 17 |
| 26 | Xavier Simeon | Avintia Ducati | Ducati | 2.385s | 14 |
