Will Power picked up where he left off from his dominating weekend last week in Sonoma.
Power turned the quickest lap on the bumpy 2.04 mile street circuit in downtown Baltimore. His lap of 89.411 mph on his 28th out of 29 laps of the day paced the 28 cars that turned a lap today.
The man he's chasing for the championship, Dario Franchitti, was the second-quickest on the day. Franchitti turned a lap of 89.325 mph in the newly paint-schemed No. 10 Kellogg's Honda.
Brazilian Helio Castroneves was third-quickest at 89.251 mph in the No. 3 Shell/Pennzoil Honda.
Rounding out the top five were Andretti Autosport teammates Ryan Hunter-Reay and Mike Conway.
Danica Patrick struggled yet another day and ended up 24th on the speed charts with a lap of 86.911 mph. She was more than 2 seconds off Power's quickest lap.
Twenty-eight drivers turned a total of 649 laps on the new circuit today.
The 75-minute practice session was a combination of the two scheduled practice sessions today due to the schedule being pushed back four hours. The delay was caused from the track not being 100 percent ready after being completely taken down last week due to Hurricane Irene.
There will be a one hour practice session to warm up before qualifying tomorrow.