The Next Loop 40M/50M Challenge | Pinnacle Mtn
Nov 7Roland, AR50 mi, 40 mi
Also 50 miles, by Everfurther Events, registration open
At a glance
- Last held
- Aug 22, 2026
- Next edition
- 2027 date not announced. Usually held in August.
- Location
- St Louis, Missouri
- Distances
- 50 mi
- Aid stations
- 1, 1 with crew access
Listed from UltraSignup. Checked Aug 21, 2026.
Plan this race for free
1 aid stations are already loaded. Add cutoffs, pacing and the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planAbout this race
The Next Loop at Cliff Cave Park is a trail endurance event in St. Louis, MO offering three race formats on a scenic 3.1-mile River Bluff Trail loop: a flexible hourly Endurance Series (5K–50K), a continuous 40 Mile Challenge, and a continuous 50 Mile Challenge, all with a 12-hour time limit and centralized aid station access every lap.
Key dates
The Next Loop 40-mile: Late (after Jul 31) ends
Aug 14, 2026
Registration closes
Aug 21, 2026
Race day
Aug 22, 2026
Pricing
All distances
Endurance Series: Late (after Aug 14)
$125
Endurance Series
Early
$100
The Next Loop 40-mile
Early
$100
The Next Loop 50-mile
Early
$100
Email me updates about The Next Loop 40M/50M Challenge | Cliff Cave
Registration openings and major changes, like a new date or a cancellation.
Aid stations
1| Station | Distance | Crew | Drop bags | Cutoff | Supplies |
|---|---|---|---|---|---|
Central Start/Finish Aid Station Fully stocked central aid station available before the start of every hourly loop and after every 3.1-mile lap. Runners have access to personal gear staging, crew support, and medical coverage at this location every loop. | 3.10 miles | -- | -- |
Entry transfers
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Similar races
The Next Loop | Pinnacle Mountain
Nov 7Roland, AR100 mi, 100K +2
Also 50 miles, by Everfurther Events, registration open
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Also 50 miles, 105 mi from The Next Loop 40M/50M Challenge | Cliff Cave
Loud Thunder 50
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Also 50 miles, similar trail technicality to The Next Loop 40M/50M Challenge | Cliff Cave, registration opens Nov 20
Straight-line distance
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Race planning
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