Charles Leclerc secured a razor-thin victory over Max Verstappen in the Miami Grand Prix’s sole practice session, setting a 1m29.310s lap late in the 90-minute session. The race between Ferrari and Red Bull was intense, with Leclerc’s final run aided by a tow from Lando Norris. Meanwhile, Mercedes’ Kimi Antonelli faced critical power unit issues, forcing him to miss soft-tyre runs and finish fifth. This was the first practice since Japan due to Middle Eastern conflict disruptions, adding context to the teams’ cautious approach. The session also previewed 2026 regulation changes as teams tested upgrades, though Mercedes struggled to compete despite its dominance this season.

Mercedes’ frustration was palpable as Antonelli’s power unit problems disrupted his performance, a rare setback for the championship leader. The only incident involved Antonelli slowing to avoid Lance Stroll, highlighting the session’s otherwise calm nature. Red Bull’s new rear wing, dubbed a ‘Macarena Wing,’ and McLaren’s strategies kept the battle tight. Verstappen closed the gap to Leclerc but finished second, acknowledging ‘horrendous shifts’ in the car. Piastri’s third-place finish for McLaren underscored the competition’s depth. Hamilton’s fourth and Russell’s sixth rounded out Mercedes’ mixed results. The extended practice allowed teams to experiment, but reliability issues for Antonelli and Cadillac’s power outage at Aston Martin marred the session’s potential.

The Miami GP practice results carry significant implications for the season. Leclerc’s edge over Verstappen could signal a title battle, while Antonelli’s reliability crisis raises questions about Mercedes’ 2026 readiness. The 2026 regulations debut added uncertainty, with teams testing upgrades under pressure. For fans, the session was a microcosm of the season’s challenges: balancing innovation with consistency. Mercedes’ dominance this year contrasts sharply with its struggles here, suggesting vulnerabilities under the new rules. As the championship tightens, every practice session’s reliability and performance data will be scrutinized. Leclerc’s form and Red Bull’s technical adjustments will likely define the upcoming races, but Antonelli’s issues serve as a reminder that no team is immune to mechanical setbacks.