Graham Rahal topped the charts.
Team Penske has not slowed down following their 2014 championship.
Tough competition in Milwaukee this weekend.
Sebastien Bourdais: "We had a great weekend (at Toronto) and finally capitalized on the pace and promises we've had coming into the season..."
IndyCar took to the hills of Mid-Ohio today for two practice sessions ahead of tomorrows on track activity.
Kanaan led the way in the opening practice for the Verizon IndyCar Series at Texas Motor Speedway.
The five Andretti Autosport drivers took to the 2.5-mile oval for today's final practice session.
Final practice prior to qualifying weekend.
'I can go to bed resting easier knowing we got through our first day at IMS,' said rookie James Davison
Every driver made it onto the track for the fifth day of Indy 500 practice Thursday.
Simon Pagenaud turned the fastest lap of the month at IMS Wednesday, with a speed of 226.122mph.
Andretti Autosport led the way at Indianapolis during the third day of practice, which was cut short by heavy rain.