1 aidin 32 days
The Next Loop 40M/50M Challenge | Pinnacle Mtn
Roland, AR
50 mi40 mi
Open until Nov 6from $100
Trail Races & Ultramarathons in Arkansas
As of October 6, 2026, Crewable lists 18 upcoming trail races and ultramarathons in Arkansas from October 2026 to September 2027. The next is Outback in the Ozarks 205 Mile Relay on October 9 in Eureka Springs. Registration is open for 9.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
With aid station data
1 aid
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10 aid13 aid
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Race calendar
October 2026
5 racesThe Feral Hog Mountain Run
NORFORK, AR
November 2026
6 racesThe Next Loop Endurance Series - Pinnacle Mountain, AR November
Roland, AR5KOpen until Nov 7from $100
December 2026
2 racesMitchell's Mountain Infinity Loop - 3.14 mi Last Man Standing/5k/1k
Fayetteville, ARBackyard Ultra5K+1
January 2027
1 raceFebruary 2027
1 raceMarch 2027
1 raceMay 2027
1 raceSeptember 2027
1 raceQuick answers
What is the next trail race or ultramarathon in Arkansas?
Outback in the Ozarks 205 Mile Relay, on Friday, October 9, 2026, in Eureka Springs. Distances: 205 mi, 65 mi relay.
How many trail races and ultramarathons in Arkansas have open registration?
9 of the 18 list registration as open as of October 6, 2026, including Outback in the Ozarks 205 Mile Relay, Hare Mountain 100 and The Next Loop 40M/50M Challenge | Pinnacle Mtn.
How many of the trail races in Arkansas are ultramarathons?
10 of the 18 are ultramarathons (longer than a marathon, or a backyard, timed or 200+ mile format). The other 8 are shorter races.
What is the busiest month for trail races and ultramarathons in Arkansas?
November 2026, with 6 of the 18. October 2026 follows with 5.
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