Red Bull hit the ground running this afternoon, topping the timesheets with Max Verstappen behind the wheel of the RB16B completing 139 laps at the Bahrain International Circuit.
Verstappen clocked the fastest lap at 1.30.626s, making up for the minor spin made during this morning’s session.
Mercedes continued to have issues following on from this morning’s gearbox failure.
After spending most of the morning in the pits switching out the gearbox, the world champions hit the track this afternoon, and after taking over from his Finnish teammate, Hamilton managed to complete 42 laps while struggling with pace and grip.
Lando Norris managed to land second overall for McLaren, and while his new Aussie teammate was at the top of the charts this morning, Ricciardo’s time-record fell to seventh-best this afternoon.
Alpine’s Esteban Ocon finished the day with the third fastest lap overall, running on soft Pirellis while Aston Martin’s Lance Stroll finished out the day fourth on the mediums.
Carlos Sainz made the most of his first jaunt in the SF21, finishing fifth, after taking over from his new teammate, Charles Leclerc, whose earlier time dropped to 11th by the end of the day.
Rookie Yuki Tsunoda, took ninth overall in the Honda-powered AT02, running just .5s off his teammate, Pierre Gasly, who came in eighth place.
Nikita Mazepin took over from fellow Haas rookie, Mick Schumacher on track this afternoon and managed to complete 70 laps.
He finished 15th fastest, just one place ahead of Schumacher, who ran just 15 laps earlier today while the team also struggled with gearbox issues.
Day two of pre-season testing kicks off tomorrow morning at 6:50 am Irish time, as the teams scramble to repair their cars following a sand-saturated afternoon.