Rick O'Donnell Memorial 5 Mile Trail Run and Ultra Challenge
Mount Airy, MD
8 hr4 hr+1
Open until Oct 11from $50
Ultramarathons in Maryland
As of October 6, 2026, Crewable lists 14 upcoming ultramarathons in Maryland from October 2026 to June 2027. The next is Rick O'Donnell Memorial 5 Mile Trail Run and Ultra Challenge on October 11 in Mount Airy. Registration is open for 4.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
Race calendar
October 2026
3 racesNovember 2026
4 racesFebruary 2027
1 raceMarch 2027
2 racesApril 2027
2 racesMay 2027
1 raceJune 2027
1 raceQuick answers
What is the next ultramarathon in Maryland?
Rick O'Donnell Memorial 5 Mile Trail Run and Ultra Challenge, on Sunday, October 11, 2026, in Mount Airy. Distances: 8 hr, 4 hr, 5 mi.
How many ultramarathons in Maryland have open registration?
4 of the 14 list registration as open as of October 6, 2026, including Rick O'Donnell Memorial 5 Mile Trail Run and Ultra Challenge, Rocky Gap 25K, 50K, Relay Trail Run and Patapsco Valley 50K.
What is the busiest month for ultramarathons in Maryland?
November 2026, with 4 of the 14. October 2026 follows with 3.
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