Events
Race Directors

100 Miles Ultra Running Events in South Dakota

All 50 KM 50 Miles 100 KM 100 Miles 6 Hours 12 Hours 24 Hours

Upcoming Events

Date Event City Distances
06/26/26 Black Hills 100 Sturgis 50 KM , 50 Miles , 100 Miles
07/31/26 Lean Horse Custer 50 KM , 50 Miles , 100 Miles

Past Events

Date Event City Distances
07/29/00 Mount Rushmore Rapid City 50 KM , 50 Miles , 100 Miles

Weekly Newsletter

A roundup of the week's content and most recent race results. Sent once a week on Thursday.

Recent Results

Ridge to Rails 50k, Half, & 10k
Old Fort, NC - 154 finishers
50 KM
Coz's Backyard Ultra
Holland Patent, NY - 16 finishers
Backyard
Backyard Ultra of Northern Utah
Mantua, UT - 73 finishers
Backyard
Chesterfield Gorge Ultra
West Chesterfield, MA - 120 finishers
100 Miles | 100 KM | 50 Miles | 50 KM
Momentus Backyard Ultra
Monroe, NC - 74 finishers
Backyard
More Miles Last One Standing Challenge
Knoxville, MD - 66 finishers
Backyard | Backyard
Run Comfy Numb Trail Race
Whistler, BC - 68 finishers
50 KM
High Noon Showdown
Enoree, SC - 17 finishers
12 Hours | 6 Hours | 6 Hours
Rock River Canyon 50K
Munising, MI - 29 finishers
50 KM
Lake Tye Challenge
Monroe, WA - 25 finishers
12 Hours | 6 Hours
View All Results