Grand Forks, N.D. — (September 13, 2013) — Cory Mack won the sprint car feature Friday night at River Cities Speedway. Austin Pierce, Casey Mack, Mitch Mack, and Chris Ranten rounded out the top five.
Feature: 1. Cory Mack, 2. Austin Pierce, 3. Casey Mack, 4. Mitch Mack, 5. Chris Ranten, 6. Shane Roemeling, 7. Wade Nygaard, 8. Ryan Flaten, 9. Alex Larson, 10. Jordan Adams, 11. Zach Wilde, 12. Tanner Wisk, 13. Nick Omdahl, 14. Blake Egeland, 15. Rich Bates, Jr. DNF: Tom Egeland, Nick Ranten, David Glennon, Bobby Martin, Jordan Graham, Chris Shirek, Trent Stengl.