Andrea Iannone has been the faster of the second practice session of MotoGP at Brno Circuit for the Czech Republic GP. The Italian, who completes a lap before it rains, was followed bu Barberà and Márquez.
The session had started with a overcast sky which has rained sooner, as only Iannone and Barberà had completed a lap time.
With a heavy rain in the track, all the drivers where in his boxes. Karel Abraham was the first to come in the track with these tricky conditions. However, when the rain reduced its intensity, all the drivers came in the track.
And of course, with a complicated track conditions, the mistakes from the riders were easier to do.
Márquez and Pedrosa dominate on those wet conditions with the first Yamaha, Valentino Rossi, one second behind both Respol Honda Team riders.
Results:
| Pos. | Nº | Rider | Team | Motorbike | Gap | Diff | Laps | |
| 1 | 29 | Andrea IANNONE | ITA | Pramac Racing | Ducati | 2:03.179 | 12 | |
| 2 | 8 | Hector BARBERA | SPA | Avintia Racing | Avintia | + 01,283 | + 01,283 | 12 |
| 3 | 93 | Marc MARQUEZ | SPA | Repsol Honda Team | Honda | + 03,384 | + 04,667 | 12 |
| 4 | 26 | Dani PEDROSA | SPA | Repsol Honda Team | Honda | + 00,002 | + 04,669 | 13 |
| 5 | 46 | Valentino ROSSI | ITA | Movistar Yamaha MotoGP | Yamaha | + 00,979 | + 05,648 | 12 |
| 6 | 35 | Cal CRUTCHLOW | GBR | Ducati Team | Ducati | + 00,154 | + 05,802 | 11 |
| 7 | 99 | Jorge LORENZO | SPA | Movistar Yamaha MotoGP | Yamaha | + 00,133 | + 05,935 | 14 |
| 8 | 44 | Pol ESPARGARO | SPA | Monster Yamaha Tech 3 | Yamaha | + 00,298 | + 06,233 | 15 |
| 9 | 38 | Bradley SMITH | GBR | Monster Yamaha Tech 3 | Yamaha | + 00,310 | + 06,543 | 15 |
| 10 | 6 | Stefan BRADL | GER | LCR Honda MotoGP | Honda | + 00,025 | + 06,568 | 13 |
| 11 | 45 | Scott REDDING | GBR | GO&FUN Honda Gresini | Honda | + 00,122 | + 06,690 | 13 |
| 12 | 4 | Andrea DOVIZIOSO | ITA | Ducati Team | Ducati | + 00,305 | + 06,995 | 10 |
| 13 | 68 | Yonny HERNANDEZ | COL | Energy T.I. Pramac Racing | Ducati | + 00,043 | + 07,038 | 13 |
| 14 | 9 | Danilo PETRUCCI | ITA | Octo IodaRacing Team | ART | + 00,047 | + 07,085 | 12 |
| 15 | 41 | Aleix ESPARGARO | SPA | NGM Forward Racing | Forward Yamaha | + 00,292 | + 07,377 | 14 |
| 16 | 17 | Karel ABRAHAM | CZE | Cardion AB Motoracing | Honda | + 00,112 | + 07,489 | 12 |
| 17 | 51 | Michele PIRRO | ITA | Ducati Team | Ducati | + 00,160 | + 07,649 | 11 |
| 18 | 19 | Alvaro BAUTISTA | SPA | GO&FUN Honda Gresini | Honda | + 00,176 | + 07,825 | 14 |
| 19 | 7 | Hiroshi AOYAMA | JPN | Drive M7 Aspar | Honda | + 00,015 | + 07,840 | 15 |
| 20 | 70 | Michael LAVERTY | GBR | Paul Bird Motorsport | PBM | + 00,318 | + 08,158 | 10 |
| 21 | 23 | Broc PARKES | AUS | Paul Bird Motorsport | PBM | + 00,404 | + 08,562 | 10 |
| 22 | 63 | Mike DI MEGLIO | FRA | Avintia Racing | Avintia | + 00,500 | + 09,062 | 12 |
| 23 | 2 | Leon CAMIER | GBR | Drive M7 Aspar | Honda | + 00,700 | + 09,762 | 14 |
| 24 | 15 | Alex DE ANGELIS | RSM | NGM Forward Racing | Forward Yamaha | + 01,600 | + 11,362 | 13 |