THE WATERMOO
📍 Michigan, United States
gravel
Date
8 August 2026
Distance
111 miles
Elevation
1,218 m
Difficulty
gravelbeginner friendly
Hellhole Gravel Grind Stage Race
South Carolina, United States · 2–4 October 2026
Difficulty: 3/5 — Hard
This multi-day gravel race features nearly 241km of flat but challenging terrain, including hard-packed gravel, doubletrack, and Roubaix-rated trail sections. Held in the remote Francis Marion National Forest, it tests riders' physical and mental toughness through sustained effort and varied surfaces.
Visit official site →- Distances
- 10km · 72km · 121km · 241km
- Surface
- gravel, dirt, singletrack
- Typical W/kg
- 2.5–3.8
Rider fit
Who it's for
This event is suitable for gravel enthusiasts of all abilities, offering a challenging multi-day stage race and longer fondo options, as well as a shorter 45-mile ride for those newer to the sport.
Who will struggle
Riders who struggle with long distances, sustained power output on flat terrain, rough trail sections, or self-sufficiency in remote areas with limited support will find this race particularly demanding.
Training focus
Training should prioritize long endurance rides on varied gravel and dirt surfaces, sustained power output, and practicing bike handling skills for technical trail sections, alongside preparing for self-sufficiency.
Are you ready for this race?
Compare your W/kg to see how you stack up against this race's typical level — and which races fit you best right now.
FAQs
What are the different race options available?+
The event offers a three-day stage race (including an optional prologue), a two-day stage race, and one-day gravel fondos of 75 miles (121km) and 45 miles (72km).
What kind of terrain can riders expect?+
The course is described as 'pancake flat' but consists mostly of hard-packed gravel roads, grassy doubletrack, and challenging 'Roubaix-rated' trail sections within the national forest.
Are there aid stations or support on the course?+
Yes, there will be one stocked aid station on each day's course and limited SAG support. However, racers are advised to carry their own tools, parts, and nutrition due to the remote nature of the area.
What are the cutoff times for the races?+
Stage race participants and 75-mile Fondo riders must complete their courses within 7 hours each day. The 45-mile Fondo has a 5-hour cutoff time.
What are the tire recommendations for the course?+
A minimum tire width of 28c with tread is recommended, as the forest service roads are largely hard-packed gravel with numerous potholes.
Are there specific rules regarding navigation and road traffic?+
Routes are not marked; riders must use GPS course files provided two weeks prior to the event. All roads are open to traffic, and racers must obey all traffic laws, yield to vehicles, stop at crossings, and be aware of horses, giving them the right of way.