Photo: Zak Mauger/GP3 Series Media Service.
Koiranen’s sophomore driver Matt Parry set the pace in the second, final pre-season testing day in Valencia.
The Welshman led a trio of ART drivers in the morning session, which started out as wet but dried out by the checkered flag.
He was just a tenth ahead of the fastest?ART driver of Nirei Fukuzumi, the Japanese narrowly edging out Charles Leclerc and Alex Albon.
Yesterday’s pace-setter Artur Janosz fifth as Nyck de Vries brought the final ART car home in sixth.
Oscar Tunjo, recently signed by Jenzer, was seventh with Antonio Fuoco, Alex Palou and Jake Hughes completing the top 10.
Ferrari junior Leclerc was on top of the timesheets in the close afternoon running, where 19 cars were within a second.
The DAMS cars of Hughes, Santino Ferrucci and Kevin Jorg showed strong form in second, fourth and sixth respectively, sandwiching Koiranen’s Parry and Ralph Boschung.
Fukuzumi and Albon were only seventh and eighth this time as Jake Dennis and Konstantin Tereshchenko completed the top 10.
Combines day two?results
| Pos. | Driver | Team | AM | PM |
| 1 | ?Matt Parry | Koiranen GP | 1:21.476 | 1:22.195 |
| 2 | ?Nirei Fukuzumi | ART Grand Prix | 1:21.560 | 1:22.500 |
| 3 | ?Charles Leclerc | ART Grand Prix | 1:21.564 | 1:22.089 |
| 4 | ?Alexander Albon | ART Grand Prix | 1:21.598 | 1:22.509 |
| 5 | ?Artur Janosz | Trident | 1:21.673 | 1:22.527 |
| 6 | ?Nyck de Vries | ART Grand Prix | 1:21.697 | 1:22.621 |
| 7 | ?Oscar Tunjo | Jenzer Motorsport | 1:21.796 | ?No Time |
| 8 | ?Antonio Fuoco | Trident | 1:21.820 | 1:23.007 |
| 9 | ?Alex Palou | Campos Racing | 1:21.989 | 1:22.833 |
| 10 | ?Jake Hughes | DAMS | 1:22.016 | 1:22.166 |
| 11 | ?Jack Aitken | Arden International | 1:22.041 | ?No Time |
| 12 | ?Matevos Isaakyan | Koiranen GP | 1:22.056 | ?No Time |
| 13 | ?Akash Nandy | Jenzer Motorsport | 1:22.088 | 1:23.169 |
| 14 | ?Santino Ferrucci | DAMS | 1:22.147 | 1:22.243 |
| 15 | ?Jake Dennis | Arden International | 1:22.189 | 1:22.531 |
| 16 | ?Kevin Jorg | DAMS | 1:22.203 | 1:22.433 |
| 17 | ?Ralph Boschung | Koiranen GP | 1:23.466 | 1:22.366 |
| 18 | ?Giuliano Alesi | Trident | 1:22.340 | 1:22.586 |
| 19 | ?Sandy Stuvik | Trident | 1:22.340 | 1:22.775 |
| 20 | ?Mahaveer Raghunathan | Koiranen GP | 1:22.477 | ?No Time |
| 21 | ?Richard Gonda | Jenzer Motorsport | 1:22.505 | 1:22.878 |
| 22 | ?Tatiana Calderon | Arden International | 1:22.531 | 1:22.951 |
| 23 | ?Konstantin Tereshchenko | Campos Racing | 1:22.850 | 1:22.568 |
| 24 | ?Steijn Schothorst | Campos Racing | 1:22.847 | 1:22.725 |