Traverse Run @ West Kilimanjaro to Lake Natron, Tanzania on 12 June 2025

TRAVERSE RUN offers five stages of varied terrain, amazing scenery, and wildlife viewing. The course is raceable by the experienced, challenging to adventurers, and rewarding for all. The race takes place on fast single track, slow and technical single track, and double track safari roads.

Silver Moon Race: Kings River @ Reedley College Farms, Reedley, CA, United States on 12 April 2025

The Silver Moon Race is about challenging yourself, taking your endurance ability, and miles to new heights. Perfect for those who want to elevate from half marathons to marathons to ultramarathons.

You’ll run in beautiful scenic locations in a 12K or for 6, 12, 24-hours, or 100-mile race on an awesome lap course. Go solo […]

Advent Run Streak @ Sinister Sports Inc., Bellevue, Alberta, Canada on 01 December 2024

Stay active this December by running with friends near and far. It’s like an Advent Calendar… but with running… and special bonus fun! Join us for a 24-day run streak that’ll keep you motivated while getting some fun swag and a shot at great daily prizes.

How it Works Each day from December 1 to […]

The Dark: 24 Hours Underground @ Bellevue Underground Mine, Bellevue, Alberta, Canada on 02 November 2024

Are you a child of the night? Are you longing for the warm embrace of a dark cavern? Do you love coal and mining history? You are in luck! Welcome to The Dark – a loop race in the Bellevue Underground Mine (BUM). This race calls on the brave to test their limits in The […]

ARCHIVED RACE: Castle Alpine Trail Race @ Castle Mountain Resort, Pincher Creek No. 9, Alberta, Canada on 21 September 2024

Get into fall running mode and enjoy the Castle Mountain Resort Area on one of the most scenic race courses you’ll ever get to see. The Castle is a secluded gem of a place that everyone should make an effort to visit.

Castle Alpine Trail Race (CAT) combines wide open vistas, rugged single track, off-trail […]

ARCHIVED RACE: Canadian Death Race @ Grande Cache Recreation Center, Grande Cache, Alberta, Canada on 03 August 2024

Since the start of the millennium, racers have come to the Canadian Rockies to cheat Death in one of the world’s toughest ultramarathons. The 118km course begins and ends on a 4200-foot plateau, passes over three mountain summits, and not only includes 4543m (14,905 feet) of elevation change but a major river crossing at the […]

ARCHIVED RACE: Black Spur Ultra @ Kimberley Alpine Resort, Kimberley, British Columbia, Canada on 24 August 2024

Black Spur Ultra (BSU) is wrought from the winding, technical single track that trail runners dream about. No pavement, big climbs through rugged terrain, immaculate trails, and stunning scenery. Hosted at Kimberley Alpine Resort, you can walk to the start line right from your hotel room. Kimberley is a secluded gem nestled between the Purcell […]

Sinister 7 Ultra @ Crowsnest Sports Complex, Coleman, Alberta, Canada on 13 July 2024

Sinister 7 Ultra may be the greatest challenge of your life. The 100-mile (161km), 50-mile (80 km), and 50-km courses will take you through the most rugged, remote and beautiful terrain in Alberta’s stunning Rocky Mountains. With over 6,600m of elevation gain across the course, this race will punish those who are not prepared.

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PT281 @ Guarda, Belmonte, Portugal on 17 July 2024

It’s a race where temperatures soar past 40º. The heat is stifling and many of the participants rate it as the hardest they’ve ever done. To be happy and one of the finalists in this race, you need to have a real capacity for autonomy, be self-sufficient and know how to navigate the entire route […]

Oh Meu Deus @ Guarda, Seia, Portugal on 07 June 2024

This journey through Serra da Estrela’s natural heritage is 13 years old! The longest distances have a geographical scope that covers almost the entire Natural Park. We don’t forget the people, the history and the traditions. We often pass through small villages where you can get to know the customs and traditions of the mountains.

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ARCHIVED RACE: Backyard Ultra Horizontes @ Castelo Branco, Proença a Nova, Portugal on 27 April 2024

The Horizontes Backyard Ultra is an official race on the Backyard Ultra calendar. An American concept created by Lazarus Lake, organizer of the famous and legendary Barkley Marathons in the Frozen Head Nature Park in Tennessee.

The logic of this race is very simple: to complete a loop of 6,706 km in a maximum time […]

ARCHIVED RACE: Peak District Challenge @ Hathersage, England, United Kingdom on 13 September 2024

Event date: 13-14 September 2024

The Peak District Challenge is a trail running or trekking challenge that offers four levels of difficulty:

25km (Copper) 50km (Bronze) 75km (Silver) 100km (Gold Ultra).

Each distance has a target time to try to beat, from 9 hours to hike 25km, up to 24 hours to walk or […]

Nashville Ultramarathon @ Cornelia Fort Airpark, Nashville, TN, United States on 19 October 2024

50 mile and 50K options. Race takes place on Nashville’s extensive greenway system.

ARCHIVED RACE: Peak District Challenge 2023 @ Hope Valley, England, United Kingdom on 15 September 2023

Event date: 15-16 September 2023 The Peak District Challenge is a picturesque trekking challenge that offers five levels of difficulty: 10km (Back before Dark fell race) 25km (Copper) 50km (Bronze) 75km (Silver) 100km (Gold Ultra). Each distance has a target time to try to beat, from 1 hour to complete our 10km Back Before Dark […]

ARCHIVED RACE: Trailwalker 2023 @ Queen Elizabeth Country Park, Horndean, England, United Kingdom on 22 September 2023

Take on the Trailwalker Challenge! With a team of four, take on an unforgettable 100km journey in under 30 hours across the South Downs.

Trailwalker is the ultimate in long-distance challenges, raising vital funds for the GWT. The challenge is to walk, jog or run 100km across the South Downs Way in under 30 hours […]

ARCHIVED RACE: Laurel Highlands Ultra 70.5miles @ Laurel Highland Hiking Trail, Ohiopyle, PA, United States on 10 June 2023

All of the races are point-to-point. The races will start in Ohiopyle, PA, with the 70.5 mile individual and relay races running the entire length of the trail to Seward, PA and the 50K races finishing at the 31 mile point before the intersection of Route 31. All of the races are point-to-point along the […]

ARCHIVED RACE: Nashville Ultra @ Cornelia Fort Airpark, Nashville, TN, United States on 21 October 2023

50 Mile and 50K options. The course is paved walking trails and bike trails. The entire route is part of Nashville’s sprawling Greenway system. The route includes pedestrian bridges that cross over the Cumberland River at two different points. The route also passes by Nissan Stadium, home of the NFL Tennesee Titans. Aid stations every […]

ARCHIVED RACE: Swiss Alps 100 @ Sport Resort, Fiesch, Valais, Switzerland on 11 August 2023

We welcome you to the Swiss Alps 100 trail race, where you will experience some of the finest trails and views of the famous Swiss Alps mountains. Our courses, which are part run on the UNESCO World Heritage, are incredibly scenic, yet strenuous and challenging. Many parts of the course, like the Aletsch glacier, the […]

ARCHIVED RACE: The Wall 2023 @ Hadrian’s Wall, Carlisle, England, United Kingdom on 17 June 2023

Are you ready for an adventure? Take on the UK’s most iconic ultramarathon and conquer 70 stunning miles through historic Hadrian’s Wall country in a continuous fully supported and way marked journey. Run or trek this classic route in a day!

ARCHIVED RACE: The Isles Ultra 2023 @ Outer Hebrides, Scotland, United Kingdom on 28 September 2023

This 6-day running adventure traces a route the entire length of the inhabited isles of the Outer Hebrides, and passes through the most superlative coastlines, beaches, hillsides, sea and inland loch and river terrain in Scotland and the UK.

Firstly, it completes the 150-miles of the entire Hebridean Way, then on the 6th day, an […]

ARCHIVED RACE: PORTUGAL1001 @ Chaves, Vila Real, Portugal on 24 September 2022

It is the longest ultramarathon on the Iberian Peninsula: 1001km divided by 14 stages, with an average of 71.5km per day, on a self-sufficient basis and guided only by GPS. The route consists in paths, tracks, forest and asphalted roads, which can be national or municipal, or simply local accesses.

ARCHIVED RACE: PT281 @ Belmonte, Castelo Branco, Portugal on 21 July 2022

PT281 Ultramarathon is a race of extreme difficulty, due to its mountain characteristics (D+ 6,776 meters / D- 6,900 meters) and intense/dry heat (40º C), placing it somewhere between Badwater (USA) and BR135+ (Brazil). The course is made in a continuous way, for more than 280 km, on a self-sufficient basis and with a time […]

ARCHIVED RACE: EXTREMO-SUL @ Chuí, Rio Grande do Sul, Brazil on 25 November 2022

Extremo Sul Ultramarathon – The World’s Longest Beach is a pedestrian crossing, over a 226km stretch of beach, to be done in the shortest possible time, in a “non stop” format, but with a 54-hour time limit for ranking.

ARCHIVED RACE: OH MEU DEUS @ Seia, Guarda, Portugal on 10 June 2022

“Oh meus deus” has several races with diferent distances and altitudes: OMD20 (26,8km, slope of 1.860 m, in 8h – Long trail) OMD50 (54km, slope of 2.548m, in 11h – Long trail) OMD100 (101.7km, slope of 5.209m, in 26h – Ultra XL Trail) The OMD Ultra Trail® Serra da Estrela is the forerunner in long […]

ARCHIVED RACE: Pilot Mountain to Hanging Rock 50 Miler and 50K @ Danbury, NC, United States on 01 October 2022

Pilot Mountain to Hanging Rock is one of the most beautiful and challenging trail ultras in the southeastern US. Run from one iconic North Carolina peak to another and enjoy the fall scenery.