Marco Andretti posted the fastest Indianapolis 500 practice speed of the month Monday, turning a fast lap of 225.100 mph on the 2.5-mile oval.
It was the second straight day an Andretti Autosport driver held the top spot. Colombia's Carlos Munoz, a rookie, was the fastest driver Sunday.
Warmer temperatures and brighter skies created much better conditions from the first two days of practice at Indy, and it showed. Andretti was and three-time Indy winner Helio Castroneves each topped 225 mph. The Brazilian posted a lap of 225.075 mph as he tries to become the fourth member of the four-time winners club at Indy.
Defending series champion Ryan Hunter-Reay was third at 224.386. Australia's Will Power was fourth at 223.784 and Panther Racing's J.R. Hildebrand was fifth at 223.624.