Hell Creek 100 is a running, trail running, and ultra race on October 30–31, 2026 in Sylvan Grove, KS.
Live forecast from the U.S. National Weather Service.
Race Day 1
Friday, 10/30
High
73°
Low
54°
Widespread fog then chance showers and thunderstorms
Race Day 2
Saturday, 10/31
High
64°
Low
53°
Chance rain showers
Nearest Airport
SLN
Salina Municipal Airport · 42 mi
Time Zone
Central Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Every finish line starts with a single decision. Claim your spot at Hell Creek 100, put it on the calendar, and turn “someday” into a start date.
Today
Race day is here
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This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Running off-road — dirt, singletrack, and mountain paths — from 5Ks to ultras. The terrain makes for an exciting twist and adventure in your running journey.
An ultramarathon is anything beyond the standard marathon — 50K, 50-mile, 100K, 100-mile, and timed events. Crossing the line is less about speed and more about not quitting.
Hell Creek 100
Oct 30, 2026