New Zealand Indycar driver Scott Dixon has lost ground to series leader Josef Newgarden after the latest race at the Pocono Raceway in Pennsylvania.
Dixon finished sixth at the ABC Supply 500 as Australian Will Power battled back from a lap down to win at Pocono for the second straight year and to pick up his third win of the IndyCar Series season.
The American Newgarden's second placing helped increase his lead over Dixon in the IndyCar series from eight to 18 points.
Helio Castroneves, who finished seventh at Pocono, is third , 22 points behind Newgarden.
There are three more races left in the season with the next race at Gateway Motorsports Park in Illinois.
Dixon says his NTT Honda was in good shape at Pocono despite missing the chance to make final adjustments in practice.
"We reverted back to an earlier setup and the car was fast."
"We decided to get out front and lead and I was happy with the car in the first half of the race. We made some adjustments after that and settled into the top five.
"In the last 25 or so laps we were contending, but just couldn't get back to the front."
Australian Power held off teammate Newgarden by 0.5268 of a second to pick up his thirty second IndyCar win.
Power was running in sixth place when he made an unscheduled green-flag pit stop on Lap 66 to replace a front wing assembly.
It put the 2014 series champion a lap down, but Power worked his way back onto the lead lap just past the halfway point of the 200-lap race on the 2.5-mile, three-turn oval.
When leader Marco Andretti had to stop for fuel 10 laps from the finish, Power regained first place and held off the charges of Newgarden and Alexander Rossi over the final 10 laps.