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Castroneves held on for his 28th career victory, and became the seventh winner in eight IndyCar races this season. He also took over sole possession of the points lead, breaking a tie with Andretti, who dropped 22 points back and is still without a victory.

Will Power, Castroneves’ teammate who was the polesitter, finished seventh.

Penske got his eighth IndyCar win at Texas, along three NASCAR victories there (two Sprint Cup, one Nationwide).

Chip Ganassi’s team, which has won four IndyCar races at Texas, is still looking for a win anywhere this season.

Dario Franchitti was the highest-finishing Honda in sixth, while Ganassi teammate Scott Dixon was 23rd in the 24-car field after finishing only 61 laps because of an apparent gear shaft problem.

Andretti led the first 53 laps after starting on the front row, before giving up the lead on a green-flag stop. He led only four more laps before Castroneves went high around him late on lap 96 and stayed in front.

“The car was absolutely on rails,” Castroneves said.

Before Oriol Servia spun out right in front of him on lap 113, Castroneves had built a 14-second lead over defending race winner Justin Wilson. Castroneves was able to get around Servia’s car without any issue, and his ensuing stop under caution ended a sequence of 61 laps without a stop _ after an early 54-lap run.

“We knew we wanted to run as long as we could, and the tires were so good when we took them off the first time, we didn’t have to worry,” Penske said. “We just stayed steady the whole time. … Helio did a great job. He drove all night long and coming up on cars that are 10-15 miles an hour slower and is able to maintain his speed and the distance between cars behind him.”