It comes around once each year. It's the biggest event in the history of sprint car racing.

Knoxville Raceway, in Knoxville, Iowa, hosts The Knoxville Nationals. The dream of any racer in the sport, is to win this one.

A wealth of history surrounds this event. 2015 marked the 55th running of the prestigious race.

It not only brings in racers from around the world, but fans as well. This year there were 112 cars listed in qualifying.

North Dakota native Donny Schatz won Saturday night to earn his fifth title. Schatz led all 50 laps.

Main Event finishing position, car number, driver name, hometown, (starting position)

1. 15, Donny Schatz, Fargo, ND (1); 2. 29, Kerry Madsen, St. Mary’s, NSW, Aust. (2); 3. 49, Brad Sweet, Grass Valley, CA (5); 4. 16, Shane Stewart, Bixby, OK (12); 5. 71m, Joey Saldana, Brownsburg, IN (4); 6. 21, Brian Brown, Grain Valley, MO (14); 7. 9, Daryn Pittman, Owasso, OK (15); 8. 2, Danny Lasoski, Dover, MO (6); 9. 1z, Lucas Wolfe, Mechanicsburg, PA (13); 10. Greg Hodnett (23); 11. 24, Terry McCarl, Altoona, IA (8); 12. 17w, Bryan Clauson, Noblesville, IN (16); 13. 7, David Gravel, Watertown, CT (3); 14. 93H, Sheldon Haudenschild, Wooster, OH (10); 15. 29w, Danny Dietrich, Gettysburg, PA (17); 16. Cody Darrah (22); 17. 19M, Brent Marks, Myerstown, PA (18); 18. 1B, Dale Blaney, Hartford, OH (11); 19. Sammy Swindell (21); 20. 3A, Billy Alley, Bennet, NE (19); 21. 51, Paul McMahan, Nashville, TN (7); 22. 41, Jason Johnson, Eunice, LA (9); 23. 12, Lynton Jeffrey, Prairie City, IA (24); 24. Wayne Johnson (20); 25. 24R, Trevor Canales, Roseville, CA (25). Lap Leader: Schatz 1-50. Hard-charger: Hodnett.