| 1 | Firestone Grand Prix of St. Petersburg | St. Petersburg, Florida | March 1 | |
| 2 | Good Ranchers 250 | Avondale, Arizona | March 7 | |
| 3 | Java House Grand Prix of Arlington | Arlington, Texas | March 15 | |
| 4 | Children's of Alabama Indy Grand Prix | Birmingham, Alabama | March 29 | |
| 5 | Acura Grand Prix of Long Beach | Long Beach | April 19 | |
| 6 | Sonsio Grand Prix | Indianapolis, Indiana | May 9 | |
| 7 | 110th Running of the Indianapolis 500 | Indianapolis, Indiana | May 24 | |
| 8 | Chevrolet Detroit Grand Prix | Detroit, Michigan | May 31 | |
| 9 | Bommarito Automotive Group 500 | Madison, Illinois | June 7 | |
| 10 | XPEL Grand Prix at Road America | Elkhart Lake, Wisconsin | June 21 | |
| 11 | Honda Indy 200 at Mid-Ohio | Lexington, Ohio | Jule 5 | |
| 12 | Borchetta Bourbon Music City Grand Prix | Lebanon, Tennessee | Jule 19 | |
| 13 | BITNILE.com Grand Prix of Portland | Portland, Oregon | August 9 | |
| 14 | Ontario Honda Dealers Indy at Markham | Markham, Ontario | August 16 | |
| 15 | Freedom 250 Grand Prix of Washington, D.C. | Washington, D.C. | August 23 | |
| 16 | Snap-on Makers and Fixers 250 | West Allis, Wisconsin | August 29 | |
| 17 | Snap-on Milwaukee Mile 250 | West Allis, Wisconsin | August 30 | |
| 18 | WeatherTech Raceway Laguna Seca | Monterey, California | September 6 | |
