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Miami Grand Prix
Venue: Miami International Autodrome Dates: 2-4 May Race start: 21:00 BST on Sunday
Coverage: Live commentary of practice and qualifying online and BBC Radio 5 Sports Extra; race on BBC Radio 5 Live and live text updates on BBC Sport website and app
Mercedes driver Andrea Kimi Antonelli became the youngest driver to take a Formula 1 pole position for the sprint event at the Miami Grand Prix.
The 18-year-old beat McLaren's Oscar Piastri, the championship leader, by 0.045 seconds. The second McLaren of Lando Norris was third ahead of Red Bull's Max Verstappen.
Antonelli's team-mate George Russell was fifth fastest, 0.309secs slower than the Italian rookie.
It was an outstanding performance from Antonelli, the first time he has beaten Russell in qualifying this season, and the first time he has shown a glimpse of the huge potential Mercedes believed they saw in him when they chose him to replace Lewis Hamilton.
Antonelli has taken a steady approach to the start of his career but had looked sure-footed and accomplished from the start of practice and carried that form into qualifying.
He described his lap as "mighty", and starting the sprint from pole gives him a big opportunity to convert it into a first win, given the power of clear air in F1.
Hamilton himself was seventh fastest, one place behind team-mate Charles Leclerc.
Williams' Alex Albon, Racing Bulls' Isack Hadjar and Aston Martin's Fernando Alonso completed the top 10, only the second time his team has made it that high up this year, after team-mate Lance Stroll achieved it in the sprint in China.
Albon's team-mate Carlos Sainz should also have been in the top 10 but he made a mistake on his final lap in the second session and will line up 15th.
Verstappen's team-mate Yuki Tsunoda was knocked out in the first session and will start the sprint 18th.