Valtteri Bottas and Nico Muller were the pacesetters in the two GP3 free practice sessions at Barcelona's Circuit de Catalunya.
Lewis Williamson led the field for the first half of the opening session for MW Arden, before being displaced by teammate Mitch Evans in the second half of the session.
Bottas then went top for ART, where he remained until the checkered flag. Evans ended up second ahead of James Calado, Rio Haryanto, Williamson and Dean Smith.
Jenzer Motorsport driver Muller posted the afternoon's benchmark time just a few minutes into the second session.
Andrea Caldarelli was second quickest for Tech 1, but was knocked down into third by Manor driver Haryanto before the end of the session. Calado was fourth, with ART teammates Pedro Nunes and Bottas just behind.
Free practice 1 times:
| Pos | Driver | Team | Time | Gap | Laps |
| 1 | Valtteri Bottas | Lotus ART | 1:38.726 | 13 | |
| 2 | Mitch Evans | MW Arden | 1:38.834 | 0.108 | 15 |
| 3 | James Calado | Lotus ART | 1:38.864 | 0.138 | 11 |
| 4 | Rio Haryanto | Marussia Manor Racing | 1:39.128 | 0.402 | 17 |
| 5 | Lewis Williamson | MW Arden | 1:39.169 | 0.443 | 13 |
| 6 | Dean Smith | Addax Team | 1:39.202 | 0.476 | 16 |
| 7 | Andrea Caldarelli | Tech 1 Racing | 1:39.271 | 0.545 | 15 |
| 8 | Nigel Melker | RSC Mucke Motorsport | 1:39.305 | 0.579 | 16 |
| 9 | Aaro Vainio | Tech 1 Racing | 1:39.310 | 0.584 | 16 |
| 10 | Pedro Nunes | Lotus ART | 1:39.444 | 0.718 | 12 |
| 11 | Adrian Quaife-Hobbs | Marussia Manor Racing | 1:39.447 | 0.721 | 16 |
| 12 | Matias Laine | Marussia Manor Racing | 1:39.522 | 0.796 | 16 |
| 13 | Michael Christensen | RSC Mucke Motorsport | 1:39.569 | 0.843 | 16 |
| 14 | Tamas Pal Kiss | Tech 1 Racing | 1:39.719 | 0.993 | 16 |
| 15 | Marlon Stockinger | Atech CRS GP | 1:39.788 | 1.062 | 16 |
| 16 | Vittorio Ghirelli | Jenzer Motorsport | 1:39.924 | 1.198 | 17 |
| 17 | Nick Yelloly | Atech CRS GP | 1:39.950 | 1.224 | 13 |
| 18 | Alexander Sims | Status Grand Prix | 1:39.956 | 1.230 | 15 |
| 19 | Gabriel Chaves | Addax Team | 1:40.010 | 1.284 | 16 |
| 20 | Nico Muller | Jenzer Motorsport | 1:40.185 | 1.459 | 17 |
| 21 | Zoel Amberg | Atech CRS GP | 1:40.240 | 1.514 | 17 |
| 22 | Daniel Morad | Carlin | 1:40.241 | 1.515 | 16 |
| 23 | Leonardo Cordeiro | Carlin | 1:40.325 | 1.599 | 16 |
| 24 | Simon Trummer | MW Arden | 1:40.359 | 1.633 | 14 |
| 25 | Conor Daly | Carlin | 1:40.410 | 1.684 | 17 |
| 26 | Luciano Bacheta | RSC Mucke Motorsport | 1:40.538 | 1.812 | 16 |
| 27 | Dominic Storey | Addax Team | 1:40.623 | 1.897 | 16 |
| 28 | Ivan Lukashevich | Status Grand Prix | 1:45.791 | 7.065 | 6 |
| 29 | Maxim Zimin | Jenzer Motorsport | 1:50.154 | 11.428 | 2 |
| 30 | Antonio Felix Da Costa | Status Grand Prix | 1 |
Free practice 2 times:
| Pos | Driver | Team | Time | Gap | Laps |
| 1 | Nico Muller | Jenzer Motorsport | 1:39.791 | 13 | |
| 2 | Rio Haryanto | Marussia Manor Racing | 1:39.873 | 0.082 | 14 |
| 3 | Andrea Caldarelli | Tech 1 Racing | 1:39.884 | 0.093 | 13 |
| 4 | James Calado | Lotus ART | 1:40.037 | 0.246 | 13 |
| 5 | Pedro Nunes | Lotus ART | 1:40.040 | 0.249 | 12 |
| 6 | Valtteri Bottas | Lotus ART | 1:40.072 | 0.281 | 12 |
| 7 | Adrian Quaife-Hobbs | Marussia Manor Racing | 1:40.117 | 0.326 | 5 |
| 8 | Tamas Pal Kiss | Tech 1 Racing | 1:40.219 | 0.428 | 14 |
| 9 | Alexander Sims | Status Grand Prix | 1:40.303 | 0.512 | 15 |
| 10 | Mitch Evans | MW Arden | 1:40.312 | 0.521 | 15 |
| 11 | Gabriel Chaves | Addax Team | 1:40.314 | 0.523 | 8 |
| 12 | Aaro Vainio | Tech 1 Racing | 1:40.349 | 0.558 | 14 |
| 13 | Matias Laine | Marussia Manor Racing | 1:40.372 | 0.581 | 12 |
| 14 | Michael Christensen | RSC Mucke Motorsport | 1:40.399 | 0.608 | 12 |
| 15 | Vittorio Ghirelli | Jenzer Motorsport | 1:40.426 | 0.635 | 13 |
| 16 | Nigel Melker | RSC Mucke Motorsport | 1:40.449 | 0.658 | 13 |
| 17 | Nick Yelloly | Atech CRS GP | 1:40.576 | 0.785 | 15 |
| 19 | Marlon Stockinger | Atech CRS GP | 1:40.624 | 0.833 | 14 |
| 20 | Leonardo Cordeiro | Carlin | 1:40.705 | 0.914 | 13 |
| 21 | Lewis Williamson | MW Arden | 1:40.773 | 0.982 | 14 |
| 22 | Simon Trummer | MW Arden | 1:40.789 | 0.998 | 14 |
| 23 | Antonio Felix Da Costa | Status Grand Prix | 1:40.809 | 1.018 | 16 |
| 24 | Dominic Storey | Addax Team | 1:40.912 | 1.121 | 12 |
| 25 | Conor Daly | Carlin | 1:41.079 | 1.288 | 16 |
| 26 | Zoel Amberg | Atech CRS GP | 1:41.280 | 1.489 | 15 |
| 27 | Ivan Lukashevich | Status Grand Prix | 1:41.416 | 1.625 | 15 |
| 28 | Luciano Bacheta | RSC Mucke Motorsport | 1:41.929 | 2.138 | 7 |
| 29 | Maxim Zimin | Jenzer Motorsport | 1:42.021 | 2.230 | 13 |
