Whether this is the last time MotoGP visits Indianapolis or not – the lack of an announcement on Sunday night suggests that this was the last time – the 2015 edition will certainly go down in history as memorable.
Race day saw the biggest crowd since 2009 head to Indianapolis Motor Speedway, though in a facility this vast, anything less than a quarter of a million fans is going to look empty, and all 67,000 were treated to some genuine racing spectacle.
An upside down Moto3 race, where those bold enough to gamble on slicks were duly rewarded; an old-fashioned Moto2 dogfight, where a group of evenly matched riders brawled from start to finish; and a pair of exceptionally tense duels in MotoGP, with championship positions raising the stakes even further.
The race of the day? Hard to say. All three had their own appeal. Rain and a drying track made Moto3 a weird contest, with massive gaps between the leaders, and yet still strangely exciting, because of the potential effects on the championship.
Moto2 harked back to the halcyon days of Márquez, Iannone, and Espargaro, and reminded us of why we used to love the class. And MotoGP was more about tension than straight up excitement, brains kept busy calculating the ramifications for the championship as the front four swapped positions.
That Marc Márquez ended up winning the MotoGP race should come as no surprise. The Repsol Honda rider extended his winning streak, both at the track and in the USA.