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Upcoming 100 Mile Trail Races & Ultramarathons

Browse upcoming 100 Mile trail races and ultramarathons from around the world. Filter by region or switch to the calendar to plan your season — each race links through to its course, elevation profile, and registration details.

races
36
season
Aug 2026 – Mar 2027
countries
13
next up
Canadian Death Race 118km Ultra

Next up

Canadian Death Race 118km Ultra
100M
5 days away
Aug 1, 2026
Canadian Death Race 118km Ultra
Grande Cache, AB, CA14,900 ft
Wyoming Range 100-Mile Endurance Run
100M
11 days away
Aug 7, 2026
Wyoming Range 100-Mile Endurance Run
Big Piney, WY, US24,000 ft
Swiss Alps 100 160KM
100M
11 days away
Aug 7, 2026
Swiss Alps 100 160KM
Fiesch, VS, CH33,300 ft
Eastern States 100 Mile
100M
12 days away
Aug 8, 2026
Eastern States 100 Mile
Waterville, PA, US20,000 ft
L'Échappée Belle Intégrale
100M
4 weeks away
Aug 21, 2026
L'Échappée Belle Intégrale
Aiguebelle, Savoie, FR37,370 ft
Leadville Trail 100 Run
100M
4 weeks away
Aug 22, 2026
Leadville Trail 100 Run
Leadville, CO, US15,490 ft
Swiss Peaks Trail 100 Miles
100M
5 weeks away
Sep 3, 2026
Swiss Peaks Trail 100 Miles
Le Bouveret, VS, CH36,060 ft
36 races · August 2026 – March 2027
AUGUST 20266 RACES
SAT
1
AUG
Canadian Death Race 118km Ultra
Grande Cache, AB, CA14,900 ft
FRI
7
AUG
Wyoming Range 100-Mile Endurance Run
Big Piney, WY, US24,000 ft
FRI
7
AUG
Swiss Alps 100 160KM
Fiesch, VS, CH33,300 ft
SAT
8
AUG
Eastern States 100 Mile
Waterville, PA, US20,000 ft
FRI
21
AUG
L'Échappée Belle Intégrale
Aiguebelle, Savoie, FR37,370 ft
SAT
22
AUG
Leadville Trail 100 Run
Leadville, CO, US15,490 ft
SEPTEMBER 202615 RACES
THU
3
SEP
Swiss Peaks Trail 100 Miles
Le Bouveret, VS, CH36,060 ft
FRI
4
SEP
Kerry Way Ultra 200km
Killarney, Kerry, IE15,510 ft
FRI
4
SEP
Dark Divide 100 Mile Endurance Run
Randle, WA, US26,570 ft
FRI
11
SEP
Pirin Ultra 160K
Bansko, BG36,090 ft
FRI
11
SEP
Superior Fall Trail Race 100 Mile
Lutsen, MN, US17,350 ft
FRI
11
SEP
Wasatch Front 100 Mile Endurance Run
Kaysville, UT, US20,670 ft
SAT
12
SEP
Mogollon Monster 100 Mile
Pine, AZ, US15,900 ft
FRI
18
SEP
I Feel Slovenia 120K
Kranjska Gora, SI19,330 ft
FRI
18
SEP
Run Rabbit Run 100
Steamboat Springs, CO, US16,490 ft
SAT
19
SEP
Mountain Lakes 100
Olallie Lake, OR, US11,700 ft
SAT
19
SEP
IMTUF 100 Mile
McCall, ID, US22,000 ft
SAT
19
SEP
Plain 100 Mile
Leavenworth, WA, US21,000 ft
FRI
25
SEP
Karkloof 100 Miler
Howick, KwaZulu-Natal, ZA10,800 ft
FRI
25
SEP
The Bear 100 Mile Endurance Run
Logan, UT, US22,820 ft
SAT
26
SEP
Sangre de Cristo Trail Festival 100 Mile
Westcliffe, CO, US16,690 ft
OCTOBER 20267 RACES
SAT
3
OCT
Arkansas Traveller 100 Mile
Perryville, AR, US12,000 ft
SAT
3
OCT
Angeles Crest 100 Mile Endurance Run
Wrightwood, CA, US25,760 ft
FRI
9
OCT
OG Yeti 100 Mile Endurance Run
Abingdon, VA, US3,000 ft
SAT
17
OCT
Autumn 100
Goring-on-Thames, Oxfordshire, GB5,000 ft
FRI
30
OCT
Lake Biwa 100
Komono, Mie, JP30,460 ft
FRI
30
OCT
Mallorca SDT - Serra de Tramuntana
Sóller, Illes Balears, ES17,750 ft
SAT
31
OCT
Javelina Jundred 100 Mile
Fountain Hills, AZ, US6,300 ft

Frequently asked questions

How many 100 Mile trail races are there?

Trailrace lists 36 upcoming 100 Mile trail races (Aug 2026 – Mar 2027), sorted soonest first.

What is the next 100 Mile race?

The next is Canadian Death Race 118km Ultra on August 1, 2026 in Grande Cache, AB, CA.

Which countries host 100 Mile trail races?

These 100 Mile trail races span 13 countries. Use the region filter to narrow the list to a specific country.

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