What happened: The sprint race at the British Grand Prix is underway at Silverstone Circuit. The short-format race opens Saturday's running at the Pirelli-sponsored event, with sprint points up for grabs before Sunday's grand prix.

Why it matters: Sprint results shape both the points picture and the tone of the weekend at one of the calendar's marquee venues. Lewis Hamilton starts the sprint from pole after holding off Kimi Antonelli in Friday's sprint qualifying, giving the home crowd a British driver at the front on home soil.

What to watch: The sprint result sets the stage for grand prix qualifying later Saturday, with the British Grand Prix itself to follow on Sunday at Silverstone.