In a TV slot that the NBA Playoffs usually own, the inaugural Formula 1 Miami Grand Prix saw a record for a live audience.

Sunday’s F1 Miami GP averaged 2.07 million viewers on ABC, making it the most viewed live Formula 1 race in US television history. That’s because the 2002 Monaco Grand Prix, also on ABC, holds the number one spot with 2.78 million viewers, but was broadcast on a tape delay.

Two of the ten most-watched F1 races have come this season alone, with the Saudi Arabian Grand Prix ranking tenth (1.45M).

F1 lost its head-to-head battle with the NASCAR Cup Series race from Darlington on FS1 (2.61M) but won easily in the coveted 18-49-year-old demographic (735K to 517K).

In-person attendance for the race was also strong. Over 242,000 fans came to the Stadium complex over the three-day weekend and 85,280 showed up for race day.

How does this compare to other race weekends?

Using last year’s numbers (and including the Australian Grand Prix from this year) it would make the Miami GP #5.

For the USA, these numbers are promising and for Formula 1 these numbers mean the move into the United States is working. It also justifies the Vegas move instantly.

Are you impressed by what you saw in Miami? Sound off below.