SONOMA, Calif. -- Scott Dixon lost 40 potential championship points on what was set up to be a routine pit stop.
Dixon, who entered the GoPro Grand Prix of Sonoma 31 points behind the front-running Helio Castroneves, finished 15th after being penalized by INDYCAR Race Control for a pit safety infraction on his final service stop under caution on Lap 64 of 85 when leading the 25-car field. He heads to Baltimore this week 39 points behind Castroneves, who finished seventh.
The drive-through penalty served on the Lap 70 restart, without recourse by the Target Chip Ganassi Racing team, opened the door for Will Power to win for the first time since Brazil on April 29, 2012. Power is the 10th different winner through 15 IZOD IndyCar Series races (the record is 11 in the 2001 and 2000 CART seasons).
Power, who started third in the No. 12 Verizon Team Penske car, led Justin Wilson across the finish line by 1.1930 seconds following the last of a race-record seven restarts on Lap 82. Verizon P1 Award winner Dario Franchitti, also seeking his first win of the season, finished third and Marco Andretti was fourth for his sixth consecutive top-10 finish.
Power has won three of the past four races on the 2.385-mile, 12-turn Sonoma Raceway road course, but this one certainly had a different feel.
Dixon and Power were running 1-2 when they pitted on Lap 64, with Power's pit stall directly in front of Dixon's. As the No. 9 Target Chip Ganassi Racing car made its break, it clipped the right-rear tire carried by Penske crew member Travis Law, which knocked him into airjack man Damon Lopez. Both were uninjured.
Race Control issued the penalty after multiple video views. Race director Beaux Barfield cited Rule 18.104.22.168 (contact with personnel; under the pit procedures heading) of the IZOD IndyCar Series rulebook in making the ruling.
"It's probably the most blatant thing I've seen in a long time," said Dixon, who started on the front row and was seeking his fourth victory in the past five races. "I had a straight line and he walked into us. Pretty annoyed with that; we had a strong car all day."
In the final laps, he charged from 20th to 15th to save additional points. Dixon picked up three bonus points -- two for leading the most laps (27) and one for leading a lap.
Simon Pagenaud finished fifth and Ryan Hunter-Reay, who is 62 points out of first place, was sixth. Castroneves, driving the No. 3 Hitachi Team Penske car, registered his 11th consecutive top-10 finish. Thirteen drivers remain in championship contention heading to the Sept. 1 Grand Prix of Baltimore presented by SRT.
Power, who recorded his 19th career victory, said he "learned a lot about myself" during the drought (he had a best finish of third at Milwaukee this season) and being the championship runner-up the past three seasons.
"I just kept at it, and just stoked for all the guys that make this possible," he said. "It’s great for our confidence and we’re back in our winning ways."
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