The USA Cycling 24 hour national championships, originally scheduled for September 19-20 have been moved to October 24-25 and a new venue. They will be held in Phoenix, Arizona, under the guidance of promoter Tucson Racing.
The event remains part of the USA Cycling Mountain Bike National Calendar - Ultra Endurance (MBNC-UE). An updated calendar of the events in the series is below.
USA Cycling Mountain Bike National Calendar - Ultra-endurance
February 14: Mas o Menos 100km (Texas) (XCM)
February 21: 12 hours of Santos (Florida) (12h)
March 7-8: Spa City Extreme (Arkansas) (XCM)
May 9: Dirt, Sweat & Gears (Tennessee) (12h)
June 20: Cowbell Challenge (North Carolina) (12h)
July 4: US Marathon National Championships (Colorado) (XCM)
October 16-18: National MTB Oktoberfest (North Carolina) (8h)
October 24-25: US 24 hour national championships (Arizona) (24h)