Power fends off Castroneves at Edmonton
24 July 2011 – Will Power overcame Penske team-mate Hélio Castroneves to claim his fourth win of the season at Edmonton, holding the Brazilian at bay during a tense end to the 80-lap race. The 2010 runner-up moved into the lead on Lap 19, taking the chequered flag just ahead of Castroneves, while Ganassi's Dario Franchitti completed the podium.
This led to the first caution period, with marshalls working to move Sebastian Saavedra - who was left with nowhere to go behind Tracy - off the racing line. KV Racing's Sato held onto his lead as the Pace Car came in at the end of Lap 5, with Power making his way up to second at the hairpin. The Japanese driver stayed up front for the next few laps, keeping a relatively comfortable gap to Power behind.
This crucially led to the Safety Car being deployed again, sparking a flurry of pit-lane activity on the following lap. All of the front runners dived into the pits for fuel and tyres, as most drivers opted to take advantage of the caution. Power retained his lead ahead of Dixon, but Sato lost even more ground after being jumped by Ryan Briscoe.
Sato’s hopes of victory were dashed after being tapped around by Ryan Hunter-Reay on the 40th lap, falling to the tail of the field because of the contact. Once again the Safety Car remained stationary, but a drive-through penalty was later issued to the American for his ambitious move. Power made his final stop a handful of tours later on Lap 54, rejoining ahead of Castroneves as the race entered its closing stages.
Tony Kanaan was ultimately the highest placed KV Racing driver in fourth after Sato's misfortune, narrowly beating Justin Wilson and Sebastien Bourdais. Ryan Hunter-Reay recovered to seventh after his penalty ahead of Mike Conway, while the latter's Andretti team-mate Danica Patrick led home tenth place man Ryan Briscoe.
Round 11 of the championship takes place in Mid-Ohio in a fortnight's time