Scott DixonScott Dixon set the fastest lap of Tuesday's running during this week's Indianapolis 500 practice.

The session was the first full day of practice, with yesterday's having been abandoned due to rain, ahead of qualifying this weekend. Though today's session was brought to a premature end, just a few minutes ahead of the scheduled time, when EJ Viso crashed heavily at Turn 1. He was removed from the car and taken to the medical facility on a stretcher, before being transferred to the Methodist Hospital in Indianapolis. Viso was awake and alert throughout, but complaining of back pain.

Dixon topped the practice with a best time of 39.7265sec (226.549mph), set early in the session when he knocked Mario Moraes off the top. But the Brazilian remained second and ended 0.1119sec behind Dixon at 225.913mph.

Moraes survived a spin in the pit exit on the inside of Turn 1 midway through the six-hour session. He hit the retaining wall twice but was able to drive his KV Racing car back to the pits with just minor damage to the rear wing. More caution periods broke up the running, with one for debris on the track early on, another for a track inspection and two more brief stoppages for rain inside the final hour. But there was plenty of time for clear running and most drivers chose to complete between 20 and 50 laps in the time before Viso's crash.

Marco Andretti finished the day third fastest, ahead of Alex Tagliani, Dan Wheldon and Tony Kanaan. 2007 Indy 500 winner Dario Franchitti was seventh, ahead of three-time winner Helio Castroneves, with Will Power and Simona de Silvestro completing the top 10.