http://www.sprintsondirt.com/2015/02...2015-schedule/
April 25 – Crystal Motor Speedway, Crystal, Michigan
May 1 – I-96 Speedway, Lake Odessa, Michigan
May 2 – Hartford Motor Speedway, Hartford, Michigan
May 16 – Plymouth Motor Speedway, Plymouth, Indiana
May 22 – Limaland Motorsports Park, Lima, Ohio *
May 23 – Waynesfield Raceway Park, Waynesfield, Ohio *
May 24 – Eldora Motor Speedway, Rossburg, Ohio *
May 29 – Hartford Motor Speedway, Hartford, Michigan
June 5 – Tri-City Motor Speedway, Auburn, Michigan
June 6 – Montpelier Motor Speedway, Montpelier, Indiana *
June 13 – Butler Speedway, Butler, Michigan
June 26 – Hartford Motor Speedway, Hartford, Michigan
July 17 – Tri-City Motor Speedway, Auburn, Michigan
July 18 – Crystal Motor Speedway, Crystal, Michigan – Mike Olrich Memorial
July 24 – Hartford Motor Speedway, Hartford, Michigan
July 25 – Butler Speedway, Butler, Michigan
July 31 – I-96 Speedway, Lake Odessa, Michigan
Aug 1 – Montpelier Motor Speedway, Montpelier, Indiana*
Aug 15 – Plymouth Motor Speedway, Plymouth, Indiana
Aug 29 – Crystal Motor Speedway, Crystal, Michigan
Sep 4 – Hartford Motor Speedway, Hartford, Michigan
Sep 18-19 — Ohsweken Speedway, Ohsweken, ONT, CA**
*Co-Sanctioned with the NRA Sprint Invaders
**Canadian Sprint Car Nationals