Belle Isle was as much a contest of strategies- three stints, one with Red tires that are soft and sticky and faster, but quickly degrading tires or using the Black more durable racing rubber. Nonetheless, driving skill played a key role in preserving the tires and conserving fuel. Team Penske opted for the different strategy to try to help Power gain track position on the bumpy, narrow temporary street circuit from his 16th starting position. Power drove the final 20 laps on Firestone alternate “red” tires, which initially have more grip but lose traction quickly with time. Rossi was on the more durable and consistent Firestone primary “black” tires for his final stint.