The Next Loop - Cliff Cave

Oakville, United States • 22 Aug 2026

The Next Loop - Cliff Cave

The Next Loop - Cliff Cave takes place at Cliff Cave Park, on the River Bluff Trail overlooking the Mississippi River. The course is a clearly marked 3.1-mile (5K) loop that returns each lap to the same central start/finish area with a fully stocked aid station.

The trail surface is primarily packed dirt with sections of crushed limestone and natural singletrack. Runners encounter roots, short climbs, a few technical sections, rolling hills, and bluff-side overlooks. The route has more elevation than flatter park courses while still allowing runners to complete repeated laps.

The event uses a loop format: athletes start together, complete one 5K loop at a time, and decide whether to continue. Every completed loop is counted and honored, with no forced cutoffs listed.

Location: Cliff Cave Park, 806 Cliff Cave Rd, St Louis, MO 63129.

Distances offered:

  • 5K
  • 10K
  • 15K
  • 1/2 Marathon (13.1M)
  • 18K
  • Marathon (26.2)
  • 50K

The series is described in three participant categories: new runners building distance, experienced runners using multiple laps for training, and those pursuing longer efforts by stacking loops. Visit the organization's website for the most recent information.

Race information

50 km
50k
26 mi
Marathon
13 mi
1/2 Marathon
18 km
18k
15 km
15k
10 km
10k
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

A three day stage trail race in Wildwood, Missouri from May 15 to 17, 2026. It covers roughly 21 miles, 26 miles and about 25K across Rockwoods and Greensfelder trails with creek crossings and scenic bluffs.

A trail race at Pere Marquette State Park in Grafton, IL offering 12.5K, 25K, and 50K on technical bluff and ravine trails. Solo and Buddy divisions are available; registration closes May 15 and refunds are not offered.

Operation GRANITE X at Tri-Township Park on May 16, 2026 uses repeated 6 mile loops made of three 2 mile laps. Two divisions are offered: a heavy, escalating weight format and an endurance format; entry totals $213.87.

Mud Factor returns to Brookdale Farms in Eureka, MO on June 6, 2026 with Adult and KIDZ Family Waves, required signed waivers and photo ID for adults, and a $10 cash spectator fee for festival access.

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