Photo: Sam Bloxham / GP3 Series Media Service
Ferrari protege Antonio Fuoco ended an overcast day of the GP3 pre-season at Estoril on top.
Fuoco, running in the #1 car for 2014 champions Carlin, moved up to first in the final hour of the session and narrowly held on to the benchmark.
ART’s Marvin Kirchhofer was the session leader before Fuoco and came close to taking the spot back in the final minutes, ultimately missing out by just 0.001s.
Arden’s Emil Bernstorff was another driver with a good shot at setting the pace, but ended up 0.022s off in third.
Trident’s Luca Ghiotto was a tenth down in fourth, with Carlin’s new signing Jann Mardenborough taking fifth.
FIA F3 Europe champion Esteban Ocon ended the day in sixth, finishing as second-best rookie to his former teammate Fuoco.
Ralph Boschung led the Jenzer efforts in seventh, with Jimmy Eriksson being the top Koiranen man in eighth.
Morning pacesetter Oscar Tunjo took ninth this time around, while Matheo Tuscher held on to tenth despite causing a late red flag.
Session results
| Pos. | Driver | Team | Time | Gap | Laps |
| 1 | Antonio Fuoco | Carlin | 1:28.410 | 36 | |
| 2 | Marvin Kirchhofer | ART Grand Prix | 1:28.411 | 0.001 | 35 |
| 3 | Emil Bernstorff | Arden International | 1:28.433 | 0.023 | 30 |
| 4 | Luca Ghiotto | Trident | 1:28.516 | 0.106 | 26 |
| 5 | Jann Mardenborough | Carlin | 1:28.595 | 0.185 | 35 |
| 6 | Esteban Ocon | ART Grand Prix | 1:28.626 | 0.216 | 31 |
| 7 | Ralph Boschung | Jenzer Motorsport | 1:28.638 | 0.228 | 34 |
| 8 | Jimmy Eriksson | Koiranen GP | 1:28.773 | 0.363 | 26 |
| 9 | Oscar Tunjo | Trident | 1:28.994 | 0.584 | 32 |
| 10 | Matheo Tuscher | Jenzer Motorsport | 1:29.001 | 0.591 | 37 |
| 11 | Seb Morris | Status Grand Prix | 1:29.015 | 0.605 | 37 |
| 12 | Mitch Gilbert | Carlin | 1:29.169 | 0.759 | 20 |
| 13 | Alex Palou | Campos Racing | 1:29.304 | 0.894 | 35 |
| 14 | Alex Fontana | Status Grand Prix | 1:29.465 | 1.055 | 46 |
| 15 | Matthew Parry | Koiranen GP | 1:29.477 | 1.067 | 31 |
| 16 | Kevin Ceccon | Arden International | 1:29.599 | 1.189 | 30 |
| 17 | Alfonso Celis | ART Grand Prix | 1:29.860 | 1.450 | 33 |
| 18 | Pal Varhaug | Jenzer Motorsport | 1:30.017 | 1.607 | 23 |
| 19 | Sandy Stuvik | Status Grand Prix | 1:30.207 | 1.797 | 32 |
| 20 | Artur Janosz | Trident | 1:30.393 | 1.983 | 31 |
| 21 | Adderly Fong | Koiranen GP | 1:30.446 | 2.036 | 24 |
| 22 | Zaid Ashkanani | Campos Racing | 1:31.879 | 3.469 | 20 |
| 23 | Alex Bosak | Arden International | 1:33.201 | 4.791 | 29 |