Kimi Antonelli's championship lead has suddenly become a lot less comfortable after a costly mistake in the Miami Grand Prix Sprint. The young Mercedes driver crossed the line in fourth place on the road, only to be hit with a five-second penalty for repeated track limits violations, dropping him to sixth.
The result means Antonelli picked up just three points to teammate George Russell's five, trimming the gap at the top of the standings. For a driver who physically finished ahead of his teammate, seeing points slip away in such an avoidable manner is a tough pill to swallow.
The Italian was shown the black-and-white flag on lap 12 as a final warning, but a fourth track limits infringement on the final lap sealed his fate. It was a frustrating end to a weekend that started with promise, as Antonelli lined up alongside Lando Norris on the front row in second place.
A poor start saw him drop to fourth as Oscar Piastri and Charles Leclerc surged ahead. It was a familiar scenario for the driver, who has struggled with race starts recently. After the race, Antonelli defended his launch procedure, saying, "On my side for once, I did everything right with the procedures. We need to check what happened. The grip was very low, probably lower than we expected."
He was quick to take responsibility for what followed, adding, "After that, I was really frustrated and didn't even drive well. I did a lot of mistakes and got track limits, which is something I need to avoid."
The weekend has been a reality check for Mercedes, as McLaren and Ferrari's upgrade packages have brought them back into genuine contention. Norris became the first non-Mercedes driver to claim pole this season and ended the team's perfect grand prix and sprint record in 2026. The competitive order has clearly shifted since Mercedes dominated the opening rounds in Japan.
Antonelli remains focused on the bigger picture, saying, "This weekend has been more difficult but it was expected with everyone bringing big upgrades. We just need to maximise the result and now focus on qualifying." With the championship battle heating up, every point—and every mistake—will matter even more going forward.