Scott Dixon set the Iowa Speedway two-lap qualifying track record en route to the Verizon P1 Award to lead a front-row sweep for Target Chip Ganassi Racing during qualifications for tonight's Iowa Corn Indy 300 presented by DEKALB. Dixon's two-lap average of 186.256 mph shattered the previous speed record of 180.375 mph held by Takuma Sato since 2011.Tony Kanaan, the 2010 race winner on the 0.894-mile, variably-banked oval while with Andretti Autosport, recorded a two-lap average speed of 185.891 mph in the No. 10 TNT Energy Drink entry to tie his season-high qualifying result of second.Dixon, driving the No. 9 entry, is the ninth different driver to claim the Verizon P1 Award during the first 12 races of the Verizon IndyCar Series season. Today's effort marked his 21st career Indy car pole, tying Gil de Ferran for 13th on the all-time Indy car list."It's definitely a good thing to see the Ganassi cars at the top," said Dixon, the reigning Verizon IndyCar Series champion, whose previous best qualifying result on an oval this season was seventh at Texas Motor Speedway. "We had been stuck in sort of a rut and it had been a while since my last pole (Baltimore in August 2013). We're winless so we have a bit of work to do. It definitely will be a tough one; the competition is extremely good."Eight different drivers representing six teams have won this season, though none have been from Chip Ganassi Racing. Andretti Autosport has won five of the seven races at Iowa Speedway, including the past four.Dixon started on the pole at Iowa in 2007 and 2008, but has yet to win on the oval. His next victory will tie Al Unser Jr. for sixth all-time on the Indy car win list with 34. No driver has won from the pole in the seven races at Iowa Speedway.Helio Castroneves, who enters tomorrow's 300-lap race tied with Team Penske teammate Will Power atop the championship standings, set the one-lap track record (186.809 mph) on his second qualifying lap in the No. 3 for a two-lap average of 185.685 mph and will join Ryan Briscoe (185.339 mph) on Row 2. Power, battling bronchitis this weekend, qualified ninth in the No. 12 Verizon Team Penske car. Carlos Munoz qualified fifth and Sebastien Bourdais will join the series rookie in Row 3. The fourth Chip Ganassi Racing car, driven by Charlie Kimball, will occupy Row 4 in the seventh starting position with 2011 Iowa race winner Marco Andretti, who starts eighth.