As of 2023, after much thought and consideration, the Air Force Services Center has done a complete overhaul of the Air & Space Challenge. This challenge will now be called the Stratosphere Challenge and will be a competition amongst teams of Air Force and Space Force service members (active duty, reserve, or guard). Each half marathon and marathon team will be comprised of 5 members (mixed male/female) evenly built according to information provided on individual applications. 50 service members will be selected to attend (20 half marathon/30 marathon).

Individuals selected may attend in a permissive TDY status as authorized by AFI 36-3003, Military Leave Program. Each team member will receive uniforms and portions of travel, registration, and lodging reimbursed through Air Force Services Center.

How do I register for the Stratosphere Challenge?

Registration opens 15 March to 15 April for the Stratosphere Challenge of the Air Force Marathon scheduled for Saturday, September 19th, 2026.

Application link: https://dafsports.com/

The application deadline to apply for the 2026 Stratosphere Challenge is April 15.

If you have any registration questions please email afsvc.sports.workflow@us.af.mil. If you have any general race weekend questions please email usaf.marathon@us.af.mil.