The 2025 Indianapolis 500 is scheduled for Sunday, May 25, but light showers delayed the start . The 2024 rain was delayed by four hours.

While a full, 200-lap race on the 2.5-mile Indianapolis Motor Speedway oval takes roughly 3 hours, the race is official after 101 laps, so 90 minutes of favorable weather can be enough.

Does the Indy 500 run in the rain?

No. The cars use Firestone tires with no grooves, and moisture would send them careening out of control. So why not use grooved tires? That would slow the cars and send water cascading onto trailing cars. And who wants to watch the Indy 500 at less than top speed?

How do they dry the Indy 500 track?

An armada of trucks and powerful dryers circle the track to dry the 2.5-mile oval for as long as it takes to make surface race-wo

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