Oscar Tunjo and Charles Leclerc lead GP3 test sessions at Barcelona

Tunjo's time was set in the morning session, with times in the afternoon session being around two seconds slower.

Trident driver and Ferrari Driver Academy member Antonio Fuoco was second fastest, followed by Ralph Boschung of Koiranen GP.

Tunjo, Fuoco and Boschung were the only drivers to dip into the 1m33s bracket.

Matthew Parry and Jack Aitken rounded out the top five.

The session was cut short because of a red flag when Sandy Stuvik went off at Turn 9 and got beached in the gravel.

Ferrari protege Charles Leclerc topped the timesheets in the afternoon, although his fastest time was some 1.7s slower than Tunjo's best from the morning session.

There were two red flag periods in the afternoon session, with Jake Dennis first coming to a halt on track.

And with only a few minutes remaining, Parry came to a stop at Turn 8, causing the second red flag.

Jake Hughes of DAMS was second in the afternoon session, ahead of Alex Palou's Campos Racing car.

Santino Ferrucci and Steijn Schothorst completed the top five.

The final day of pre-season testing takes place on Thursday.

MORNING TIMES

Pos	Driver	Team	Time	Gap	Laps
1	Oscar Tunjo	Jenzer Motorsport	1m33.554s	-	35
2	Antonio Fuoco	Trident	1m33.843s	0.289s	25
3	Ralph Boschung	Koiranen GP	1m33.922s	0.368s	31
4	Matt Parry	Koiranen GP	1m34.036s	0.482s	27
5	Jack Aitken	Arden International	1m34.046s	0.492s	44
6	Tatiana Calderon	Arden International	1m34.081s	0.527s	34
7	Charles Leclerc	ART Grand Prix	1m34.160s	0.606s	34
8	Matevos Isaakyan	Koiranen GP	1m34.198s	0.644s	31
9	Nirei Fukuzumi	ART Grand Prix	1m34.245s	0.691s	33
10	Alex Palou	Campos Racing	1m34.345s	0.791s	35
11	Jake Hughes	DAMS	1m34.350s	0.796s	27
12	Alexander Albon	ART Grand Prix	1m34.441s	0.887s	34
13	Kevin Jorg	DAMS	1m34.529s	0.975s	25
14	Nyck de Vries	ART Grand Prix	1m34.565s	1.011s	31
15	Steijn Schothorst	Campos Racing	1m34.623s	1.069s	31
16	Jake Dennis	Arden International	1m34.715s	1.161s	36
17	Giuliano Alesi	Trident	1m34.822s	1.268s	26
18	Artur Janosz	Trident	1m34.823s	1.269s	25
19	Santino Ferrucci	DAMS	1m34.928s	1.374s	25
20	Richard Gonda	Jenzer Motorsport	1m35.122s	1.568s	29
21	Sandy Stuvik	Trident	1m35.251s	1.697s	24
22	Konstantin Tereschenko	Campos Racing	1m35.261s	1.707s	10
23	Akash Nandy	Jenzer Motorsport	1m35.902s	2.348s	29

AFTERNOON TIMES

Pos	Driver	Team	Time	Gap	Laps
1	Charles Leclerc	ART Grand Prix	1m35.167s	-	34
2	Jake Hughes	DAMS	1m35.198s	0.031s	47
3	Alex Palou	Campos Racing	1m35.205s	0.038s	40
4	Santino Ferrucci	DAMS	1m35.371s	0.204s	41
5	Steijn Schothorst	Campos Racing	1m35.376s	0.209s	45
6	Alexander Albon	ART Grand Prix	1m35.427s	0.260s	38
7	Oscar Tunjo	Jenzer Motorsport	1m35.451s	0.284s	38
8	Nirei Fukuzumi	ART Grand Prix	1m35.576s	0.409s	37
9	Nyck de Vries	ART Grand Prix	1m35.718s	0.551s	38
10	Konstantin Tereschenko	Campos Racing	1m35.734s	0.567s	25
11	Sandy Stuvik	Trident	1m35.780s	0.613s	37
12	Matevos Isaakyan	Koiranen GP	1m35.814s	0.647s	38
13	Giuliano Alesi	Trident	1m35.934s	0.767s	44
14	Kevin Jorg	DAMS	1m36.030s	0.863s	39
15	Jake Dennis	Arden International	1m36.045s	0.878s	30
16	Jack Aitken	Arden International	1m36.104s	0.937s	38
17	Akash Nandy	Jenzer Motorsport	1m36.132s	0.965s	36
18	Richard Gonda	Jenzer Motorsport	1m36.476s	1.309s	28
19	Tatiana Calderon	Arden International	1m36.936s	1.769s	37
20	Artur Janosz	Trident	1m37.163s	1.996s	37
21	Ralph Boschung	Koiranen GP	1m38.542s	3.375s	46
22	Antonio Fuoco	Trident	1m38.757s	3.590s	43
-	Matt Parry	Koiranen GP	-	-	45