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Kansas Ultramarathon Calendar 2026-2027

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Explore the best ultramarathons in Kansas for 2026-2027! Our updated list features 17 exciting races across the region. Find your next race in Kansas below and join the running community at these great events!

December 2026
Dec
19
Sa

Slough and Steady

Trail Run 25 km 50 km 100 km 125 mi
February 2027
Feb
20
Sa

Psycho Wyco Run Toto Run

Trail Run 10 mi 20 mi 50 km
April 2027
Apr
3
Sa

Prairie Spirit Trail

Trail Run Half Marathon Marathon ... 100 km 100 mi
Apr
10
Sa

Flint Hills Gravel

6 km 10 km Half Marathon
Apr
10
Sa

Flint Hills 50 and Marathon

Trail Run 26 mi 50 mi
Monthly updates for Kansas

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Apr
17
Sa

FlatRock

Trail Run 5 km 12 km ... 101 km 101 mi
Apr
23
Fr

Iron Will Grand Slam

Road Race Trail Run 100 mi
Apr
24
Sa

The Eternal Damnation Backyard

Backyard Ultra 7 km
May 2027
May
1
Sa

Heartland 50

Trail Run 25 km 50 km 50 mi
May
29
Sa

Iron Will Backroads

Trail Run 50 km 50 mi 100 mi
June 2027
Jun
26
Sa

Night Hawk 50K - Lawrence, KS

Trail Run 10 mi 20 mi 50 km
July 2027
Jul
10
Sa

Honey Badger 100

100 mi
August 2027
Aug
21
Sa

Hell Creek Half & 50K

Trail Run Half Marathon 50 km
September 2027
Sep
4
Sa

Laps For Love Backyard Ultra

Backyard Ultra 7 km
Sep
18
Sa

Iron Will 100 - Junction City, KS

Trail Run 50 km 50 mi 100 mi
Sep
25
Sa

FlatRock

Trail Run 5 km 12 km 25 km 50 km
October 2027
Oct
29-31
Fr - Su

Hell Creek 100

Trail Run 10 km 20 mi ... 100 mi 140 mi
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