Nico Hulkenberg set the fastest time of a farcical first practice session for the Russian Grand Prix after a diesel spillage.

With teams keen to get in dry running before predicted rain in the afternoon,  they were greeted by a delay to the opening session. Half an hour of early running was lost due to a diesel spillage between turns 7 and 9 which required a major clean-up operation.

With firemen hosing down the circuit, all of the cars headed out on intermediate or wet tyres for their installation laps when the pit lane opened after 30 minutes, but conditions remained difficult throughout the remaining hour.

The track remained slippery, with a number of drivers running wide at Turn 8 and Kimi Raikkonen sliding off track before spinning at low speed. Towards the end of the session, Felipe Massa also spun at Turn 8 with Lewis Hamilton taking avoiding action behind the Williams, but Hamilton then duly spun off himself at the penultimate corner.

With little running taking place before the final half hour, the McLarens topped the session for a spell before a flurry of late laps saw a reshuffling of the order, with Hulkenberg posting a 1:44.355. That left the Force India just 0.052s clear of Nico Rosberg, who completed a number of early laps in order to carry out practice starts before being warned his clutch was overheating.

Sebastian Vettel was third fastest for Ferrari despite being one of a number of drivers to run wide at Turn 8, radioing in on his installation lap to say: "What a mess". Sergio Perez ensured both Force Indias ended FP1 in the top four, with Daniel Ricciardo fifth and Carlos Sainz sixth.

Hamilton was seventh despite his spin, with Valtteri Bottas eighth quickest. Bottas opted for full wet tyres on his installation lap but was caught out by a lack of grip which saw him run wide when trying to return to the pit lane and having to dive back in to the pit entry.

Marcus Ericsson had been first on track when the pit lane opened but his session ended early when he stopped at the pit exit and had to be pushed back to the Sauber garage.

AS IT HAPPENED: Russian Grand Prix FP1

FP1 in Russia delayed by diesel spillage

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Pos Driver Team Time Laps
01 Nico Hulkenberg Force India 1:44.355 11
02 Nico Rosberg Mercedes 1:44.407 15
03 Sebastian Vettel Ferrari 1:44.986 15
04 Sergio Perez Force India 1:45.146 11
05 Daniel Ricciardo Red Bull 1:45.233 10
06 Carlos Sainz Toro Rosso 1:45.488 13
07 Lewis Hamilton Mercedes 1:45.691 10
08 Valtteri Bottas Williams 1:45.746 13
09 Max Verstappen Toro Rosso 1:46.203 13
10 Kimi Raikkonen Ferrari 1:46.215 16
11 Jenson Button McLaren 1:46.231 12
12 Felipe Massa Williams 1:46.333 12
13 Felipe Nasr Sauber 1:46.747 13
14 Fernando Alonso McLaren 1:47.443 16
15 Pastor Maldonado Lotus 1:48.006 9
16 Daniil Kvyat Red Bull 1:48.096 9
17 Jolyon Palmer Lotus 1:49.094 9
18 Roberto Merhi Manor 1:52.994 12
19 Marcus Ericsson Sauber 1:54.272 12
20 Will Stevens Manor 1:58.254 6
Andrew Lewin

Andrew first became a fan of Formula 1 during the time when Michael Schumacher and Damon Hill were stepping into the limelight after the era of Alain Prost, Nigel Mansell and Aryton Senna. He's been addicted ever since, and has been writing about the sport now for nearly a quarter of a century for a number of online news sites. He's also written professionally about GP2 (now Formula 2), GP3, IndyCar, World Rally Championship, MotoGP and NASCAR. In his other professional life, Andrew is a freelance writer, social media consultant, web developer/programmer, and digital specialist in the fields of accessibility, usability, IA, online communities and public sector procurement. He worked for many years in magazine production at Bauer Media, and for over a decade he was part of the digital media team at the UK government's communications department. Born and raised in Essex, Andrew currently lives and works in south-west London.

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