Red Bull Racing’s Daniel Ricciardo went quickest as testing for the 2018 FIA Formula 1 season got underway in Barcelona today.

In cold conditions, Ricciardo rose to the top of the timesheet in the morning with a time of 1:20.169 set on medium tyres. The lap, which left him just under two tenths of a second clear of Mercedes’ Valtteri Bottas, stood until the end of the day as conditions worsened in the afternoon, with rain falling in the final part of running.

There was further good news for Red Bull as Ricciardo also topped the lap count for the day, the Australian getting through 105 laps of the Circuit Barcelona-Catalunya. The impressive reliability marked a significant improvement on recent years in which the Renault-powered squad has struggled for pre-season reliability.

Bottas logged 58 laps in the morning session before handing over to team-mate Lewis Hamilton in the afternoon. The defending world champion posted just 25 laps during his outing, recording a best time of 1:22.327 that left him 2.148s off Ricciardo and in seventh place on the timesheet.

Third place in the session went to Kimi Räikkönen who got Ferrari’s 2018 campaign underway with a best lap of 1:20.506, set on soft tyres. That left him +0.327 behind Ricciardo. The Finn’s first posted 80 laps on his first day at the wheel of the team’s SF-71H car.

Renault’s Nico Hulkenberg completed the top four, with the German using the medium tyres to finish four hundredths of a second behind Räikkönen after his morning’s work. Carlos Sainz then took over at the wheel of the Reanult for the afternoon and the Spaniard logged a further 26 laps to climb to sixth on the timesheet.

That put him behind compatriot Fernando Alonso who was getting his first taste of Renault power in McLaren’s new MCL33 car.

Alonso’s outing wasn’t trouble-free, however. In the morning, with the session less than an hour old, the McLaren lost its right rear wheel and was pitched into the gravel traps with just 10 laps on the board. The team lost several hours in making repairs but in the afternoon Alonso was able to add a further 41 laps, taking fifth place with a time of 1:21.339 set on supersofts.

Times set in the morning gave Brendon Hartley and Lance Stroll eighth and ninth places respectively, with Hartley working through an impressive tally of 93 laps as Toro Rosso ran with Honda power for the first time.

Tenth place went to Haas’s Romain Grosjean, with Alfa Romeo-Sauber’s Marcus Ericsson 11^th. Force India’s Nikita Mazepin took 12^th place but the development driver did not in the afternoon after a morning spin left him in the gravel traps at Turn 4. Propping up the timesheets was Williams rookie Sergey Sirotkin, who took over from teammate Stroll in the afternoon.

Formula 1 Pre-Season Test 1, Barcelona – Day 1
1 Daniel Ricciardo Red Bull 1:20.179    105
2  Valtteri Bottas Mercedes 1:20.349 +0.170  58
3  Kimi Raikkonen Ferrari 1:20.506 +0.327  80
4  Nico Hulkenberg Renault 1:20.547 +0.368  73
5  Fernando Alonso McLaren 1:21.339 +1.160  51
6  Carlos Sainz Renault 1:22.168 +1.989  26
7  Lewis Hamilton Mercedes 1:22.327 +2.148  25
8  Brendon Hartley Toro Rosso 1:22.371 +2.192  93
9  Lance Stroll Williams 1:22.452 +2.273  46
10  Romain Grosjean Haas 1:23.092 +2.913  55
11  Marcus Ericsson Sauber 1:24.897 +4.718  63
12  Nikita Mazepin Force India 1:25.628 +5.449  22
13  Sergey Sirotkin Williams 1:44.148 +23.969  28