Scott Dixon continued to set the pace throughout this week's Indianapolis 500 practice, shaving seven hundredths of a second off his best Tuesday time to lead the field again on Wednesday.
The 2008 Indy 500 winner jumped to the top of the times inside the first hour with a 226.971mph lap that would stand unbeaten for the rest of the day.
There were long periods of quiet on the track throughout the six-hour session as teams limited their running. Today's session was broken up by fewer cautions, though. The first came just 19 minutes in to clear some debris from the circuit, but after that only Tomas Scheckter, stopping with a gearbox problem and a mid-distance track inspection, interrupted the running.
There were huge variations in workload between the drivers, with Paul Tracy and Alex Tagliani completing just 11 and 13 laps, respectively, while Tony Kanaan topped the distance chart with 134 laps. EJ Viso was cleared to drive by IndyCar's medical team, but he did not turn a lap in the session.
Penske's Ryan Briscoe finished the day with the second fastest time, lapping half a tenth – or 0.3mph – slower than Dixon. Tagliani continued his impressive week in the first FAZZT car in third place, with Hideki Mutoh finishing up fourth after setting the pace at the beginning.
Dario Franchitti celebrated his 37th birthday today and ended the session in fifth place, ahead of Will Power.
Kanaan and Helio Castroneves were the only other drivers to post sub-40sec laps, with Townsend Bell and Mario Moraes completing the top 10 behind them.