Valtteri Bottas var hurtigst på en kold og våd Istanbul Park i første træning til GP3-løbet i Tyrkiet. Danske Michael Christensen var 13. hurtigst, godt et sekund efter Lotus ART-køreren i front.
GP3 kører endnu en træningssession sent fredag eftermiddag:
Tider fra GP3-træning på Istanbul Park:
| 1 | 2 | Valtteri Bottas | Lotus ART | 1:52.295 |
| 2 | 31 | Nigel Melker | RSC Mucke Motorsport | 1:52.706 |
| 3 | 29 | Luciano Bacheta | RSC Mucke Motorsport | 1:52.733 |
| 4 | 24 | Gabby Chaves | Addax Team | 1:52.738 |
| 5 | 26 | Mitch Evans | MW Arden | 1:52.819 |
| 6 | 3 | James Calado | Lotus ART | 1:52.844 |
| 7 | 11 | Rio Haryanto | Marussia Manor Racing | 1:52.879 |
| 8 | 25 | Dean Smith | Addax Team | 1:52.934 |
| 9 | 27 | Simon Trummer | MW Arden | 1:52.971 |
| 10 | 18 | Andrea Caldarelli | Tech1 Racing | 1:53.123 |
| 11 | 14 | Conor Daly | Carlin | 1:53.167 |
| 12 | 23 | Dominic Storey | Addax Team | 1:53.218 |
| 13 | 30 | Michael Christensen | RSC Mucke Motorsport | 1:53.256 |
| 14 | 7 | Nico Muller | Jenzer Motorsport | 1:53.338 |
| 15 | 15 | Tom Dillmann | Carlin | 1:53.368 |
| 16 | 12 | Matias Laine | Marussia Manor Racing | 1:53.457 |
| 17 | 28 | Lewis Wiliamson | MW Arden | 1:53.491 |
| 18 | 5 | Antonio Felix Da Costa | Status GP | 1:53.524 |
| 19 | 8 | Maxim Zimin | Jenzer Motorsport | 1:53.649 |
| 20 | 6 | Ivan Lukashevich | Status GP | 1:53.676 |
| 21 | 19 | Tamas Pal Kiss | Tech1 Racing | 1:53.735 |
| 22 | 21 | Nick Yelloly | Atech CRS GP | 1:53.855 |
| 23 | 17 | Aaro Vainio | Tech 1 Racing | 1:53.983 |
| 24 | 1 | Pedro Nunes | Lotus ART | 1:54.244 |
| 25 | 4 | Alexander Sims | Status GP | 1:54.398 |
| 26 | 10 | Adrian Quaife-Hobbs | Marussia Manor Racing | 1:54.409 |
| 27 | 20 | Marlon Stockinger | Atech CRS GP | 1:54.783 |
| 28 | 9 | Vittorio Ghirelli | Jenzer Motorsport | 1:55.121 |
| 29 | 22 | Zoel Amberg | Atech CRS GP | 1:56.193 |
| 30 | 16 | Leonardo Corderio | Carlin | 1:59.026 |
Foto: GP3 Media Services
