2015 Indy Lights
The 2015 Indy Lights season was the 30th season of the Indy Lights open wheel motor racing series and the 14th sanctioned by IndyCar, acting as the primary support series for the IndyCar Series. The 2015 season was the second promoted by Andersen Promotions, who also promote the other steps on the Mazda Road to Indy. It was the first season for the Dallara IL-15 along with a Mazda MZR-R turbocharged 4-cylinder engine, developed by Advanced Engine Research. 2015 was the second season with Cooper Tire as the sole tire supplier. The championship was contested over 16 races, starting on March 28 at St. Petersburg, Florida and ending on September 13 at Mazda Raceway Laguna Seca.
Team and driver chart
- All drivers competed in Cooper Tire–shod Dallara chassis with Mazda AER engine.
| Team | Drivers | Rounds | |
| 8 Star Motorsports | 8 |  Scott Hargrove | 1–2 |
| 8 Star Motorsports | 8 |  Sean Rayhall | 4–8, 13–16 |
| Andretti Autosport | 51 | Shelby Blackstock | All |
| Andretti Autosport | 83 |  Matthew Brabham | 1–3 |
| Belardi Auto Racing | 4 |  Félix Serrallés | All |
| Belardi Auto Racing | 5 |  Juan Piedrahita | All |
| Carlin | 11 |  Ed Jones | All |
| Carlin | 14 |  Max Chilton | 1–8, 11–16 |
| Carlin | 14 |  Nelson Piquet Jr. | 9–10 |
| Juncos Racing | 12 | Spencer Pigot | All |
| Juncos Racing | 18 | Kyle Kaiser | All |
| Schmidt Peterson Motorsports | 7 | RC Enerson | All |
| Schmidt Peterson Motorsports | 21 |  Heamin Choi | 15–16 |
| Schmidt Peterson Motorsports | 42 | Jack Harvey | All |
| Schmidt Peterson Motorsports | 71 | Ethan Ringel | All |
| Schmidt Peterson Motorsports | 77 | Scott Anderson | All |
Schedule
The 2015 schedule was released on November 3, 2014. Iowa was added in place of Pocono, whereas Sonoma was replaced by a standalone round at Laguna Seca. The rounds at St. Petersburg and Toronto were expanded to double-headers, therefore the number of races increased to 16.| Rd. | Date | Race name | Track | Location |
| 1 | March 28 | St. Petersburg 100 | Streets of St. Petersburg | St. Petersburg, Florida |
| 2 | March 29 | St. Petersburg 100 | Streets of St. Petersburg | St. Petersburg, Florida |
| 3 | April 19 | Long Beach 100 | Streets of Long Beach | Long Beach, California |
| 4 | April 25 | Legacy Indy Lights 100 | Barber Motorsports Park | Birmingham, Alabama |
| 5 | April 26 | Legacy Indy Lights 100 | Barber Motorsports Park | Birmingham, Alabama |
| 6 | May 8 | Grand Prix of Indianapolis | Indianapolis Motor Speedway road course | Speedway, Indiana |
| 7 | May 9 | Grand Prix of Indianapolis | Indianapolis Motor Speedway road course | Speedway, Indiana |
| 8 | May 22 | Freedom 100 | Indianapolis Motor Speedway oval | Speedway, Indiana |
| 9 | June 13 | Grand Prix of Toronto | Exhibition Place | Toronto |
| 10 | June 14 | Grand Prix of Toronto | Exhibition Place | Toronto |
| 11 | July 12 | Milwaukee Race 100 | Milwaukee Mile | West Allis, Wisconsin |
| 12 | July 18 | Iowa Corn Indy 100 | Iowa Speedway | Newton, Iowa |
| 13 | August 1 | Grand Prix of Mid-Ohio | Mid-Ohio Sports Car Course | Lexington, Ohio |
| 14 | August 2 | Grand Prix of Mid-Ohio | Mid-Ohio Sports Car Course | Lexington, Ohio |
| 15 | September 12 | Grand Prix of Monterey | Mazda Raceway Laguna Seca | Monterey, California |
| 16 | September 13 | Grand Prix of Monterey | Mazda Raceway Laguna Seca | Monterey, California |
Race results
Championship standings
Drivers' championship
;Scoring system| Position | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th | 11th | 12th | 13th | 14th | 15th | 16th | 17th | 18th | 19th | 20th |
| Points | 30 | 25 | 22 | 19 | 17 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
- The driver who qualified on pole was awarded one additional point.
- An additional point was awarded to the driver who led the most laps in a race.
- The driver who obtained the fastest lap in a race was awarded one additional point.
- Ties in points broken by number of wins, or best finishes.
Teams' championship