EXPLAINED: What led to the change to the Miami Grand Prix start time?

Formula One and the FIA have taken the unusual step of moving today’s Miami Grand Prix forward by three hours, responding to forecasts of heavy rainstorms expected to hit the area later in the afternoon.

The race, originally scheduled for 16:00 local time, will now begin at 13:00 in an effort to secure the widest possible window for a full, uninterrupted Grand Prix.

The decision was announced jointly by the FIA, Formula 1 and the Miami Grand Prix promoter following overnight meteorological assessments that indicated a high likelihood of severe thunderstorms coinciding with the original start time.

In their statement, the governing bodies explained: “Following discussions between FIA, F1 and the Miami promoter, the decision has been taken to move the start of Sunday’s Miami Grand Prix to 13:00 local time in Miami due to the weather forecast that is expected to bring heavier rainstorms later in the afternoon close to the original planned race start time.”

They added that the priority was to protect the integrity of the event and ensure safe operating conditions for all personnel: “This decision has been taken to ensure the least amount of disruption to the race, and to ensure the maximum possible window to complete the Grand Prix in the best conditions and to prioritise the safety of drivers, fans, teams and staff.”

The schedule change marks the most significant same‑day adjustment to a Formula One race start time since the 2021 Belgian Grand Prix, though the circumstances differ: whereas Spa was affected by persistent rainfall during the event itself, Miami’s threat is tied to a concentrated storm system expected to sweep across South Florida later in the day.

Mercedes’ Kimi Antonelli will lead the field away from pole position, with Max Verstappen alongside him on the front row. The Italian teenager’s launch performance has been a recurring weakness this season, but the potentially wet surface may change the importance of clutch bite point and initial traction.

The operational implications extend beyond the grid. Fan access, hospitality programmes, and broadcast schedules have all been forced into rapid realignment, though organisers indicated that gates would open earlier to accommodate the revised timetable.

With thunderstorms still expected later in the day, the paddock is preparing for a narrow but viable window in which to complete the full race distance.

The Miami Grand Prix has faced weather‑related scrutiny before—most notably during its inaugural weekend in 2022, when sudden showers created unpredictable track evolution—but this is the first time the event has required a major rescheduling to avoid severe conditions.