ST. PETERSBURG, Fla. - Defending Honda Grand Prix of St. Petersburg champion Will Power topped the speed chart in the morning practice preceding three rounds of qualifications for the IZOD IndyCar Series race.

Driving the No. 12 Verizon Team Penske car, he covered the 1.8-mile, 14-turn street circuit in 1 minute, 2.7167 seconds (the quickest lap of the weekend).

Mike Conway in the No. 27 Team GoDaddy car for Andretti Autosport was second (1:03.0607) and two-time race winner Helio Castroneves (1:03.1659) was third. Ryan Briscoe (1:03.1891) was fourth and Oriol Servia in the No. 02 Newman/Haas Racing car was fifth (1:03.2987).

The top 15 cars were separated by one second, which forecasts a competitive and exciting qualifying session (2:30 p.m. ET).

Two groups get 15 minutes of qualifying in Segment 1, with the top six in each group by lap time advancing to the second segment. Another 15-minute session determines the top six by lap time for the Firestone Fast Six -- a 10-minute shootout that determines the PEAK Performance Pole Award winner and sets the first three rows.