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Ultramarathons in Arkansas

As of October 6, 2026, Crewable lists 10 upcoming ultramarathons in Arkansas from October 2026 to May 2027. The next is Outback in the Ozarks 205 Mile Relay on October 9 in Eureka Springs. Registration is open for 6.

Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites

With aid station data

Hare Mountain 10010 aid

in 17 days

Hare Mountain 100

Hagarville, AR20,321 ft gain
100 mi
Open until Oct 15from $330
13 aid

in 2 months

Spirit of Syllamo

Norfork, AR
100 mi38 mi
Open until Dec 1from $100
10 aid

in 5 months

Run Lovit

Hot Springs, AR
100 mi100K+1
Registration open

Race calendar

October 2026

2 races

  2. Hare Mountain 100

    Hagarville, AR20,321 ft gain
    100 mi
    Open until Oct 15from $330

November 2026

3 races

December 2026

2 races

February 2027

1 race

  1. Run Lovit

    Hot Springs, AR
    100 mi100K+1
    Registration open

March 2027

1 race

May 2027

1 race

Quick answers

What is the next 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 ultramarathons in Arkansas have open registration?

6 of the 10 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.

What is the busiest month for ultramarathons in Arkansas?

November 2026, with 3 of the 10. October 2026 follows with 2.

Cities in Arkansas

Fayetteville30

Neighboring states

Louisiana14Mississippi5Missouri27Oklahoma10Tennessee39Texas71

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