The Miami circuit evolved tremendously throughout the sessions. Each time, the track got a few tenths faster and that might have been what cost Max Verstappen the lead. The Red Bull Racing driver had to abort his last lap after too much contact with the kerbs.
The slip could not be repaired in the lap itself and there was not enough time left to make another push. Verstappen was frustrated in the cockpit about his mistake: "I f***** up."