Mexican driver Mario Domínguez started today official practice for the eight round of the Dayton Indy Lights championship, which will take place next Sunday at the Mid Ohio permanent circuit. This track is 2.255 miles long and has 13 turns with varying degrees of difficulty, including two 180° hairpins. Mario, driver of car number 17 Del Valle-Corona-Televisa, PacWest Lights team, is currently fourth in the championship and today got the sixth best time, 75.164 seconds. Both Townsend Bell, winner here last year, and Dan Wheldon, Mario's teammate and winner here in 1999 in the FF2000, broke the track record which belonged to australian Jason Bright since last year with 74.513 seconds. Mario, who hasn't started behind the third row in the grid all year long, was among the top runners all day but a puzzling lack of mechanic grip made his afternoon session less productive and he ended the day in sixth place.

After today's practice sessions, Mario said the car had "some grip problems, but tonight we'll make several changes in order to improve the set-up and we'll try them during Saturday's morning practice. The team knows which way we must go to improve and I have no doubts I will better my time tomorrow in the qualifying session".