Rain delayed the start of Opening Day for the 109th Indianapolis 500 as NASCAR Cup Series points leader Kyle Larson returned for his second attempt at the Indy 500.

Weather played havoc with Kyle Larson's attempt at racing 1,100 miles on the same day in 2024. He's back to try at the Indy 500-NASCAR double.

Several challenges, including a new NASCAR rule, make the feat of running in those signature races in the same day much more difficult.