F1 returns with Miami GP after rule tweaks, Antonelli leads Mercedes 1-2

Formula 1 returns from an unexpected five-week break this weekend at the Miami Grand Prix, where revised regulations and a tight championship battle take center stage. Mercedes arrives as the clear favorite after winning the season's first three races, but it's 19-year-old Kimi Antonelli who holds the drivers' championship lead, nine points ahead of teammate George Russell. The event marks the first race since the FIA implemented tweaks to hotly debated technical rules.

Why it matters:

The Miami weekend serves as a critical reset for the 2026 season, testing the impact of recent regulatory adjustments that teams have had limited time to adapt to during the break. Furthermore, the intra-team dynamic at Mercedes, with the highly-touted rookie Antonelli leading the established Russell, adds a compelling narrative to the championship fight and could signal a shifting of the guard within the dominant team.

The details:

• Event Format: The Miami GP follows the Sprint weekend format. Friday features a single practice session followed by the Sprint Shootout qualifying. The Sprint Race and Grand Prix qualifying are on Saturday, with the main race on Sunday.
• Regulation Changes: The race is the first event since the FIA enacted adjustments to contentious technical regulations. The full competitive impact of these tweaks will be revealed this weekend.
• Championship Standings: Despite Mercedes' constructor dominance, Kimi Antonelli's back-to-back wins in the last two pre-break races have propelled him to the top of the drivers' standings with a narrow lead.
• Broadcast Information: In the United States, Apple TV is the primary broadcaster for the 2026 season. In the UK, Sky Sports holds exclusive rights, with free-to-air highlights on Channel 4. Motorsport.com will provide live commentary for all sessions.
• Weather Forecast: Conditions are predicted to be dry and hot for Friday and Saturday's running, with a high chance (over 80%) of disruptive afternoon thunderstorms forecast for Sunday's Grand Prix.

What's next:

The on-track action begins with Free Practice 1 at 12:00 PM EST on Friday, May 1st, followed by the Sprint Shootout at 4:30 PM EST. The focus will immediately be on which teams have best understood the new regulatory landscape and whether Mercedes' momentum—and Antonelli's surprising lead—can be sustained on the tight, 19-turn Miami street circuit.