2024 Semper Fidelis Challenge
In 2024, the Semper Fidelis Challenge will now encapsulate the Marine Corps Marathon Organization’s three premiere events and bring them together in an exciting new way. Runners who qualify for the challenge will complete the following live events:
- Marine Corps 17.75K on March 23
- Marine Corps Historic Half on May 19
- 49th Marine Corps Marathon on October 27

Awards
Finishers will receive all three event medals, plus an exclusive challenge medal. Additionally, individuals will now have the chance to compete for category awards. This year, a runner’s aggregate finishing times from the Marine Corps 17.75K, Marine Corps Historic Half and the Marine Corps Marathon will qualify an individual for a full array of Overall, Masters and Grand Masters awards for men and women. Who will be our 2024 Semper Fidelis Challenge Champions?
Registration
Participants interested in the Semper Fidelis Challenge should register for each event individually. There are no additional registration requirements. MCMO will monitor those who qualify in-house.
- Registration for the Marine Corps 17.75K is closed. Eligible runners are those who completed the live event on Saturday, March 25.
- Registration for the Marine Corps Historic Half is closed.
- Registration for the 49th MCM is now open.
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