Events
Race Directors

Ultra Running Events in Idaho

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

Upcoming Events

Date Event City Distances
06/27/26 To Bone and Back Idaho Falls 40 Miles
06/27/26 McCall Trailrunning Classic McCall 50 KM
07/11/26 Beaverhead Endurance Runs Salmon 55 KM , 100 KM
07/24/26 Standhope Ketchum 60 KM , 100 Miles
08/14/26 Inkom Last Man Standing 1.1 Inkom Backyard
08/15/26 Harriman Park 50k Island Park 50 KM
09/11/26 If You're Not First You're Last Eagle Backyard
09/19/26 IMTUF 100 - Idaho Mountain Trail Ultra Festival McCall 100 Miles
09/19/26 Priest Lake Priest Lake 50 KM
09/26/26 Bogus 50/50 Boise 50 KM , 50 Miles
10/03/26 Legends Never Die Ketchum 55 KM
10/10/26 Sasquatch Shuffle McCall 50 KM
10/31/26 Fall Creek Beast Swan Valley 50 KM
11/07/26 ZD30 The Summit (1 Mile, 5K, and Half Marathon, 30 Mile Ultra) Boise 30 Miles
01/23/27 Wilson Creek Frozen 50K Melba 50 KM
06/04/27 Scout Mountain Ultra Trail Pocatello 50 KM , 50 Miles , 100 Miles

Past Events

Date Event City Distances
06/20/26 River of No Return Endurance Runs Challis 50 KM , 53 KM , 55 KM , 100 KM , 108 KM
06/06/26 Sharlie Shuffle McCall 6 Hours , 12 Hours
05/09/26 Boise Greenbelt Relays Boise 45 Miles
05/02/26 Heavens Gate Ultra Riggins 53 KM
04/25/26 Weiser River Trail Boise 50 KM
04/18/26 Spitfire Ultra Trail Challenge Menan 50 KM , 55 KM
03/21/26 Pulse Endurance Runs (Pickled Feet) Eagle 6 Hours , 12 Hours , 24 Hours , 48 Hours , 100 Miles
12/12/25 Dizzy Horse A Winter Backyard Ultra Idaho Falls Backyard , 20 Hours
10/05/25 Moscow Mountain Madness Moscow 50 KM
09/20/25 Race the Rocks – 50K Mountain Challenge Almo 50 KM
08/01/25 Owyhee 50/50 Night Run Homedale 50 KM , 50 Miles
06/21/25 Race the Wolf Sandpoint 52 KM
06/14/25 Little Mountain Endurance Challenge Franklin 6 Hours , 12 Hours
05/31/25 City of Rocks Ultra ALMO 27 Miles , 32 Miles , 51 Miles
09/13/24 Circles of Love Blackfoot 20 Hours
08/30/24 Operation CENTURY Irwin 105 Hours
08/10/24 Rock N Brew Boise 50 KM
07/20/24 Palisades Ultra Trail Series Irwin 50 KM , 50 Miles , 100 Miles
09/16/23 P-Towns Mini Barkley Pocatello 43 KM , 52 KM
09/17/22 The 3 Bears Preston 50 KM , 50 Miles , 100 Miles
09/17/22 Warrior Race Boise 50 KM
08/13/22 Resort to Rock Boise 50 KM , 60 KM
10/23/21 Last One Standing Endurance Run Boise Backyard
06/05/21 McCall 50K McCall 50 KM
05/01/21 The Durt 50K Boise 50 KM
08/01/20 Bailey Creek Relay Soda Springs 55 KM
06/27/20 Wild Idaho Garden Valley 50 KM , 37 Miles , 50 Miles , 54 Miles , 100 Miles
06/26/20 Dusk To Dawn Trail Runs Twin Falls 6 Hours , 12 Hours
06/06/20 7 summits MTB vs trail runners Coeur D Alene 50 KM , 50 Miles , 53 Miles , 100 KM
09/28/19 The Gnarly Bear Endurance Run Ririe 50 KM
09/28/19 Fightin Dirty Eagle 8 Hours
09/14/19 Sun Valley Endurance Runs Ketchum 50 KM
08/10/19 Dig Your Grave 100k Solo/Relay Hope 100 KM
10/06/18 Foothills 50K Frenzy Boise 50 KM
09/09/18 Bogus to Idaho City Fat Ass Boise 50 KM
10/28/17 Trail Maniacs State Park Series #5 - Halloween at Hell's Gate Lewiston 50 KM
06/17/17 Trail Maniacs State Park Series #2 - Heyburn Plummer 50 KM
05/20/17 Trail Maniacs State Park Series #1 - Farragut Athol 50 KM
07/04/15 4th of July Ultra Couer D'Alene 50 KM , 50 Miles
08/24/14 Chilco Peaks 25k & 50K Athol 50 KM
11/08/13 NNU 100 Mile Run and Relay Nampa 100 Miles
06/22/13 Silver City Endurance Runs Silver City 50 KM , 100 KM
06/01/13 Pocatello 50 Pocatello 50 KM , 50 Miles
12/12/12 The Running Monkey Challenge Boise 12 Hours
07/10/04 Midnight Mountain Preston 50 KM
05/26/01 Shafer Butte Boise 52 Miles

Weekly Newsletter

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

Recent Results

Barr Lake
Brighton, CO - 34 finishers
50 KM
Snow Peaks 50 Mile Trail Run
Provo, UT - 161 finishers
50 Miles
Table Rock Trail Challenge
Jamesville, NY - 2 finishers
Backyard
Ansonia Six Hour Trail Run
Ansonia, CT - 12 finishers
6 Hours
SF Half Day
San Francisco, CA - 62 finishers
12 Hours | 6 Hours
Gulch Countdown
Mukilteo, WA - 6 finishers
Backyard
Cool Moon Trail Runs
Cool, CA - 43 finishers
100 KM | 50 Miles
Flat Rock Trail Race
Dunstable, MA - 15 finishers
6 Hours
Edge Hill Trail Race
Ashfield, MA - 37 finishers
50 KM
Kettle Moraine 100 Endurance Runs
La Grange, WI - 346 finishers
100 Miles | 100 KM | 38 Miles | 50 KM
View All Results