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Hell Creek Half & 50k

calendar_today 29 Aug, 2026

directions_run Running

language Official Website

sell $120.00 – $165.00

Hell Creek Half & 50k

About the Event

Experience the rugged beauty of Wilson State Park at THE HELL CREEK HALF & 50k, presented by Ultraverse Supplements. Set for Saturday, August 29th, this challenging race offers both half marathon and ultra-distance options, starting with early check-in opportunities from 6:30 PM on Friday night or pre-race morning registration between 6:30 AM to 7:45 AM.
The event takes place along the renowned Switchgrass Mountain Bike Trail in Hell Creek. This trail is known for its stunning vistas of Wilson State Park and Lake, combined with rugged yet runnable terrain that winds through open spaces rather than dense forests. The course features a mix of single-track paths and minimal pavement, making it both scenic and navigable.
For those tackling the half marathon, you'll run one loop covering approximately 13 miles, starting on a short stretch of road before transitioning to the trail system. Meanwhile, ultra-runners will embark on two loops totaling around 32 miles, including an initial 19-mile loop followed by repeating sections from the half-marathon course.
Aid stations are well-placed along the route with ample supplies for both races. There's a main station at the start/finish line and another strategically located at Hell Hill for those pushing through to cover more ground. Water, soda, UltraFuel Endurance Proxima C, and typical race-day snacks will be available.
The 50k course is part of the larger Hell Creek series in September but with slight modifications. Runners can expect an easy-to-follow layout marked comprehensively with ribbons, flags, and signs to guide them through their journey. Volunteers are stationed at key points like Hell Hill to assist runners as needed.
Participants must adhere strictly to race rules: no pacers allowed except for crew support at the start/finish area; littering or trail cutting will result in disqualification. The cutoff times are generous – 9 hours for half marathon and 9.5 hours for the ultra-distance event, ensuring that all runners have ample time to complete their chosen distance.
Upon crossing the finish line, racers will receive commemorative swag including dri-fit tank tops and custom medals or buckles depending on race completion. Additional items like a small pet-specific Hell Creek medal are available for participants who run with their furry friends.
The event also counts towards the Ultraverse Kansas Slam series, offering special recognition to those completing multiple races in the state throughout the year. This makes THE HELL CREEK HALF & 50k not only an excellent training ground but also a stepping stone toward achieving greater milestones within the ultrarunning community.
Registration and deferral policies are strictly enforced with deadlines for cancellations or changes, ensuring fair play and efficient race management. As always, participants should be prepared for hot conditions and potential wind during their run, making this event both challenging and rewarding.
Participants can look forward to a day filled with breathtaking views, rigorous terrain, and the camaraderie of fellow runners at THE HELL CREEK HALF & 50k Ultraverse Supplements race.

Races Offered

50k

Aug 29, 2026

straighten

Distance — 50K

terrain

Type — Running

timer

07:30

sell

$165.00

1/2 Marathon

Aug 29, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

08:00

sell

$120.00

Weather History

These values represent the 3-year monthly averages for August in Sylvan Grove.

thermostat Temperature
21.0° / 31.9°
wb_sunny Feels like
21.1° / 31.9°
light_mode Avg sunshine hours
11h 41m
water_drop Avg rainfall
2.7 mm
ac_unit Avg snowfall
air Avg wind speed
12.5 km/h (Gentle breeze)
opacity Sweat loss rate
Very high
terrain Course conditions
Hard and dry surface
sunny Max UV Index
High (7.0)
humidity_mid Humidity
60.8%
wb_twilight Sunrise
06:47
nightlight Sunset
20:25

About Sylvan Grove

Learn more about the host city, Sylvan Grove.

Scenic view of

Sylvan Grove is a city in Lincoln County, Kansas, United States. As of the 2020 census, the population of the city was 291.

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Hotels & Places to Stay

Race Results

All-time top performances and historical records for Hell Creek Half & 50k.

Place Name Year Time
🥇 Mike Osterholt '25 4:43:40
🥈 Brooks Wachs '25 5:17:13
🥉 Mike Osterholt '23 5:18:15
4 Dillon Bergsten '25 5:44:41
5 Brian Traughber '23 5:56:37

Runner Reviews

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