Sergey Afanasiev claimed top spot in today's second free practice session at Brno. With a much drier track than in the first session, times tumbled and were more than 20 seconds quicker than earlier in the day. You can read how the session panned out below:

15.44 - For the second time today the F2 session ends under a red flag. Sergey Afanasiev topped the time sheets almost un-noticed, just squeezing out Kazim by just 0.014 seconds. Tom Gladdis was an impressive third ahead of Bailly and Eng. Championship contenders Dean Stoneman and Jolyon Palmer were seventh and 13th respectively. They will be looking to improve in qualifying tomorrow, Palmer especially after looking so convincing in the wet conditions this morning.

15.42 - We have a yellow flag in the second sector, a car is off at turn five. It's Plamen Kralev and the session has been red flagged.

15.41 - De Marco moves up to fifth, but Bailly is third, two personal bests in the first and last sectors for the Belgian.

15.40 - Kazim's really flying, setting a personal best in the opening sector and is quickest of all in the second sector. Can he move top? Yes he does, a storming lap, he's 0.376s ahead of Gladdis!

15.39 - Kazim Vasiliauskas is up to sixth on a 1:48.241.

15.37 - Gladdis sets a purple first sector on his next lap, but an ordinary middle sector. It's a personal best final sector though and Tom is top of the pile. Meanwhile, Stoneman's been off in the gravel at turn five but returns on track. That's his lap ruined though.

15.34 - It's an OK time in sector one, nothing special, and sector two fails to see an improvement either. But it's a great last sector and Stoneman's up to second. Gladdis improves also and he's up to third.

15.32 - The track is a little quiet at the moment with only five drivers circulating. Stoneman's back out though, let's see what he can do.

15.31 - Benjamin Bailly is on it and passes Parthiva Sureshwaren into turn one, there have been a few overtakes already this session.

15.30 - Nicola De Marco has moved into fifth, 0.5s behind Eng who is in the pits. Tom Gladdis is sixth with Clarke just behind.

15.29 - Eng's had a spin at turn four and has abandoned his lap, he must have been pushing a little too hard after setting that fast time.

15.28 - Philipp Eng moves to the top of the time sheet with a 1:47.872. Expect further improvements as the track rubbers in.

15.27 - Jolyon Palmer's had a spin at turn 13, but has continued. The morning pace setter is in 10th at the moment 0.895 behind Afanasiev who goes fastest on a 1:48.090.

15.25 - Sergey Afanasiev sets a purple middle sector and movess into fifth. Stoneman's just improved his time again as does Philipp Eng who is just 0.035 behind.

15.23 - Jack Clarke improves and is up to second, and Ivan Samarin moves into third. Philipp Eng moves above them both though and into second on a 1:48.271.

15.21 - Stoneman's about to go top, and he does on a 1:48.158. Three purple sectors there and he's over half a second ahead. Benjamin Bailly moves into second but over half a second behind.

15.18 - And the first driver to break the timing beam is Sergey Afanasiev who sets a time of 1:49.806. Jack Clarke immediately betters it, as does Dean Stoneman. Clarke sets a 1:49.645 with Stoneman 0.081s behind.

15.15 - The session is green and the cars are back on track. It's still pretty gloomy overhead, but the track is now much drier. All cars will be out on dry tyres.

15.10 - Welcome to live text commentary for the second session at Brno. Jolyon Palmer was impressive in the first session setting a string of fastest laps, but can he deliver again? We'll find out in five minutes time.