The ultras: the documented races
48 races documented at this distance, across 4 countries. What the distance asks of you is explained in the guide; the race pages say what each race asks on top of that.
United States
Honolulu · United StatesUltra
HURT 100
Jan 16
Its five-loop, 20-mile-per-lap format carries a famously high drop-out rate.
Bandera · United StatesUltra
HOKA Bandera Endurance Trail Race
January
The HOKA Bandera Endurance Trail Race is a trail and ultra weekend held in Bandera, Texas, inside the Hil
Moab · United StatesUltra
Moab 240 Endurance Run
January
7 km ultramarathon with 9,620 m of vertical gain, run as one continuous loop out of Moab, Utah. It is par
Mayer / Black Canyon City · United StatesUltra
Black Canyon Ultras
Feb 13
The 100K is a Golden Ticket race for the Western States 100.
Folsom · United StatesUltra
American River 50 Mile Endurance Run
Apr 3
5 km ultra with 1,396 m of climbing that follows the American River from Folsom, California, to Auburn. D
Raleigh · United StatesUltra
Umstead 100 Mile Endurance Run
Apr 3
The Umstead 100 Mile Endurance Run is a 161 km ultramarathon run in loops through William B. A 50-mile op
Geyserville · United StatesUltra
Lake Sonoma 100K
Apr 10
Completing the 100 km course in under 19 hours qualifies a runner for the Western States 100.
Auburn / Foresthill · United StatesUltra
The Canyons Endurance Runs by UTMB
Apr 22
A UTMB World Series stop, it offers four distances from 25K to 100M.
Stinson Beach · United StatesUltra
Miwok 100K
May 1
The Miwok 100K is a 100 km ultra with 3,597 m of vertical gain starting in Stinson Beach, California. It
Black Canyon City → Flagstaff · United StatesUltra
Cocodona 250
May 2
The Cocodona 250 crosses Arizona from south to north, starting in Black Canyon City and finishing in Flag
Fort Valley · United StatesUltra
Massanutten Mountain Trails 100 (MMT 100)
May 15
The Massanutten Mountain Trails 100 is run around Fort Valley, Virginia, in the George Washington Nationa
Woodstock · United StatesUltra
Old Dominion 100 Mile Cross Country Run
Jun 5
The Old Dominion 100 Mile Cross Country Run is a 161 km ultramarathon with 4,267 m of vertical gain start
Stateline · United StatesUltra
Tahoe 200 Endurance Run
Jun 21
The Tahoe 200 Endurance Run is a 322 km ultramarathon with 11,234 m of vertical gain starting in Statelin
Olympic Valley → Auburn · United StatesUltra
Western States 100-Mile Endurance Run
Jun 26
It is the historic American 100-miler and the finale of the Golden Ticket series.
Dayton / Sheridan · United StatesUltra
Bighorn Mountain Wild and Scenic Trail Run
June
The Bighorn Mountain Wild and Scenic Trail Run is a trail and ultra event held between Dayton and Sherida
Silverton · United StatesUltra
Hardrock Hundred Mile Endurance Run
Jul 9
The Hardrock 100 is run in the San Juan Mountains around Silverton, Colorado.
Leadville · United StatesUltra
Silver Rush 50 Run
Jul 10
The Silver Rush 50 Run is held in the historic mining district east of Leadville, one of the highest town
Killington · United StatesUltra
Vermont 100 Endurance Race
Jul 16
It is the only American 100-miler run alongside a simultaneous horse race.
Death Valley / Lone Pine · United StatesUltra
Badwater 135
Jul 19
Entry is by selection only, with a field of about 100 runners.
Gould · United StatesUltra
Never Summer 100K
Jul 30
The Never Summer 100K is run inside State Forest State Park, below Cameron Pass in northern Colorado.
Easton · United StatesUltra
Cascade Crest 100
July
The Cascade Crest 100 is a 161 km ultra run as a loop from Easton, Washington State. The mountain course
Waterville · United StatesUltra
Eastern States 100
Aug 14
The Eastern States 100 is run in the Pine Creek basin at the heart of the Pennsylvania Wilds, with Waterv
Leadville · United StatesUltra
Leadville Trail 100 Run
Aug 21
Nicknamed the Race Across The Sky, it is run entirely at very high altitude.
Shenandoah Valley · United StatesUltra
Grindstone Running Festival by UTMB
September
The Grindstone Running Festival by UTMB is an ultra-trail festival staged in the Shenandoah Valley of Vir
Steamboat Springs · United StatesUltra
Run Rabbit Run 100
September
5 km. It crosses Buffalo Pass at 3,140 m and Emerald Mountain, with a 36-hour time limit.
Logan · United StatesUltra
The Bear 100
September
The Bear 100 is a 161 km ultra with 6,194 m of climbing, run point to point from Logan, Utah, to Bear Lak
Big Sky · United StatesUltra
The Rut Mountain Runs
September
The Rut Mountain Runs is a mountain trail weekend held at Big Sky, Montana. 5 km Trifecta, with the Lone
Altadena / Wrightwood · United StatesUltra
Angeles Crest 100 Mile Endurance Run
October
The Angeles Crest 100 Mile Endurance Run is a 161 km mountain ultra held in the San Gabriel Mountains bet
Big Bear Lake · United StatesUltra
HOKA Kodiak Ultra Marathons by UTMB
October
HOKA Kodiak Ultra Marathons by UTMB is a trail running festival held at Big Bear Lake, California. It off
Fort McDowell / Fountain Hills · United StatesUltra
Javelina Jundred
October
The Javelina Jundred is an ultramarathon held in McDowell Mountain Regional Park, Arizona, over Halloween
Boonsboro / Williamsport · United StatesUltra
JFK 50 Mile
November
8 km ultramarathon run from Boonsboro to Williamsport in Maryland. Founded in 1963, it is the oldest ultr
Your race is not here?
Tell us about your race
You can prepare for it all the same. Any race, anywhere, and even a goal without a race.
United Kingdom
Edale → Kirk Yetholm (Pennine Way) · United KingdomUltra
Montane Winter Spine
Jan 9
The full race covers 431km, with shorter Challenger and Sprint formats alongside it.
Cornish coast · United KingdomUltra
Arc of Attrition by UTMB
Jan 22
The Arc of Attrition by UTMB is a winter ultra run along the Cornwall coast path in England. 1 km to 173
Worthing → Eastbourne · United KingdomUltra
Centurion South Downs Way 50
Apr 10
The Centurion South Downs Way 50 covers the eastern half of the South Downs Way in Sussex, from Worthing
Richmond → Oxford · United KingdomUltra
Centurion Thames Path 100
May 1
It follows the Thames towpath throughout and carries a 30-hour cut-off.
Llanberis · United KingdomUltra
Eryri by UTMB (ex Ultra-Trail Snowdonia)
May
Eryri by UTMB, formerly Ultra-Trail Snowdonia, is a mountain ultra based in Llanberis, in the Eryri range
Winchester → Eastbourne · United KingdomUltra
Centurion South Downs Way 100
Jun 12
The Centurion South Downs Way 100 follows the South Downs Way from Winchester in Hampshire to Eastbourne
West Dean (South Downs) · United KingdomUltra
Race to the King
Jun 19
Five formats run side by side, from a 30km loop to a 100km non-stop route across the chalk downland.
Lewknor → Avebury (Ridgeway) · United KingdomUltra
Race to the Stones
Jul 10
Three formats are offered: 100km non-stop, 100km over two days, and 50km.
Coniston · United KingdomUltra
Montane Lakeland 50 & 100
Jul 23
The Montane Lakeland 50 & 100 is a mountain ultra starting from Coniston in the English Lake District.
Farnham → Ashford · United KingdomUltra
Centurion North Downs Way 100
Aug 7
The Centurion North Downs Way 100 follows the North Downs Way through south-east England, crossing Surrey
Your race is not here?
Tell us about your race
You can prepare for it all the same. Any race, anywhere, and even a goal without a race.
Canada
Whistler · CanadaUltra
Ultra Trail Whistler by UTMB
Jun 25
It is the first UTMB World Series event staged in Canada, replacing the former Whistler Alpine Meadows.
Crowsnest Pass · CanadaUltra
Sinister 7 Ultra
Jul 10
Its headline 100 mile course can be run solo or split across a relay team of up to seven runners.
Grande Cache · CanadaUltra
Canadian Death Race
Jul 31
Its flagship course covers 118 km with 5,181 m of climbing, run solo or as a relay.
Squamish · CanadaUltra
Squamish 50
Aug 14
It offers a 50 mile, a 50 km, a 23 km and the 50/50 double that combines both long distances.
Kimberley · CanadaUltra
Black Spur Ultra
Aug 28
It offers a UTMB-qualifying 108k, a 54k and a 21k, all based at Kimberley Alpine Resort.
Manning Park · CanadaUltra
Fat Dog 120
August
Fat Dog 120 is a mountain ultra held in Manning Park, British Columbia. 1 km with 7,925 m of climbing, al
Your race is not here?
Tell us about your race
You can prepare for it all the same. Any race, anywhere, and even a goal without a race.
Your race is on the calendar. Your plan should be too.
Build my plan
Secure payment with Stripe. Then allow about 30 minutes for your profile, in several sittings if you like.