Head-scratching tire wear day for IndyCar teams in Detroit

The story so far with IndyCar tires in 2026 across the three street course races at St. Petersburg, Arlington and Long Beach has been one of greater durability with Firestones quicker alternate compound. But if what the teams just learned about those alternates holds firm for the rest of this weekends Chevrolet Detroit Grand Prix, we could be in for an outlier of an event.