Rick O'Donnell Memorial 5 Mile Trail Run and Ultra Challenge
Mount Airy, MD
8 hr4 hr+1
Open until Oct 11from $50
Trail Races & Ultramarathons in Maryland
As of October 6, 2026, Crewable lists 18 upcoming trail races and 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 5.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
Race calendar
October 2026
4 racesNovember 2026
7 racesSchaeffer Half Marathon, 10K, 5K Trail Run
Germantown, MDHalf Marathon10K+1Open until Nov 7from $47.50
February 2027
1 raceMarch 2027
2 racesApril 2027
2 racesMay 2027
1 raceJune 2027
1 raceQuick answers
What is the next trail race or 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 trail races and ultramarathons in Maryland have open registration?
5 of the 18 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.
How many of the trail races in Maryland are ultramarathons?
14 of the 18 are ultramarathons (longer than a marathon, or a backyard, timed or 200+ mile format). The other 4 are shorter races.
What is the busiest month for trail races and ultramarathons in Maryland?
November 2026, with 7 of the 18. October 2026 follows with 4.
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