Ralph Boschung was quickest in the morning session on day two of the first GP3 pre-season test at Estoril.
The ADAC Formel Masters graduate hit the top of the times for Jenzer Motorsport after an hour of running, deposing Marvin Kirchhofer and remaining at the head of the field until the chequered flag.
ART man Kirchhofer was 0.178s adrift, with the top two becoming the only drivers to dip below the 1m28s mark so far this week.
Like Kirchhofer, third-placed Arden driver Emil Bernstorff repeated his placing from Wednesday afternoon’s session.
Another returning driver Jimmy Eriksson was fourth for Koiranen, while Carlin’s trio of drivers filled three of the next four places, with Wednesday pace-setter Antonio Fuoco leading Mitch Gilbert, and Trident’s Luca Ghiotto seventh ahead of Jann Mardenborough.
European F3 champion Esteban Ocon was ninth for ART ahead of Euroformula Open victor Sandy Stuvik.
Kevin Ceccon caused the session’s only red flag when he stopped on track, ending up 20th of the 23 runners.
Morning session results
Pos | Driver | Team | Time | Gao | Laps |
1 | Ralph Boschung | Jenzer Motorsport | 1:27.789 | 36 | |
2 | Marvin Kirchhofer | ART Grand Prix | 1:27.967 | 0.178 | 36 |
3 | Emil Bernstorff | Arden International | 1:28.049 | 0.260 | 39 |
4 | Jimmy Eriksson | Koiranen GP | 1:28.050 | 0.261 | 25 |
5 | Antonio Fuoco | Carlin | 1:28.268 | 0.479 | 36 |
6 | Mitchell Gilbert | Carlin | 1:28.312 | 0.523 | 35 |
7 | Luca Ghiotto | Trident | 1:28.366 | 0.577 | 38 |
8 | Jann Mardenborough | Carlin | 1:28.520 | 0.731 | 37 |
9 | Esteban Ocon | ART Grand Prix | 1:28.546 | 0.757 | 33 |
10 | Sandy Stuvik | Status Grand Prix | 1:28.594 | 0.805 | 37 |
11 | Matheo Tuscher | Jenzer Motorsport | 1:28.601 | 0.812 | 39 |
12 | Alex Palou | Campos Racing | 1:28.749 | 0.960 | 37 |
13 | Matthew Parry | Koiranen GP | 1:28.772 | 0.983 | 33 |
14 | Pal Varhaug | Jenzer Motorsport | 1:28.848 | 1.059 | 30 |
15 | Seb Morris | Status Grand Prix | 1:28.941 | 1.152 | 31 |
16 | Alex Fontana | Status Grand Prix | 1:29.015 | 1.226 | 19 |
17 | Alfonso Celis | ART Grand Prix | 1:29.031 | 1.242 | 35 |
18 | Adderly Fong | Koiranen GP | 1:29.052 | 1.263 | 33 |
19 | Oscar Tunjo | Trident | 1:29.091 | 1.302 | 29 |
20 | Kevin Ceccon | Arden International | 1:29.239 | 1.450 | 34 |
21 | Artur Janosz | Trident | 1:29.866 | 2.077 | 29 |
22 | Aleksander Bosak | Arden International | 1:29.932 | 2.143 | 24 |
23 | Zaid Ashkanani | Campos Racing | 1:30.846 | 3.057 | 27 |