Red Feather Trail Jamboree @ Ben Delatour Scout Ranch, Red Feather Lakes, Colorado, United States on 26 September 2025

Come enjoy the clean air and wild spaces of the Red Feather Lakes region in Northern Colorado! Take advantage of the opportunity to explore some new trails on the private land of the Ben Delatour Scout Camp and surrounding national forest. These courses are especially designed to be beginner (or PR) friendly with buttery smooth […]

Terra De Gigantes Ultramarathon @ Seia, Portugal on 15 January 2026

It’s not just another ultramarathon. It is a long way between the highest point in mainland Portugal and the Atlantic Ocean, in this case to Nazaré. A path of amazement, of encounter, of contact with traditions, but also of faith without the need to be a believer. It will be a very unique time. Crossing […]

Staunton Rocks! Marathon & Half @ Staunton State Park, Pine, Colorado, United States on 23 August 2025

Welcome to the Staunton Rocks! Marathon & Half, an event put on by trail runners for trail runners.

Touring the renowned singletrack of Staunton State Park in Colorado’s Front Range Mountains southwest of Denver, the race will take you back in time as you glide by historic buildings and old milling operations. The flowing trails […]

Lory Summer Trail Series @ Lory State Park, Bellvue, Colorado, United States on 05 August 2025

Join us each Tuesday evening in August for a fun series of shorter midweek trail races. Our goal is to offer a fun, low-key series of races designed to give newer trail runners an opportunity to dip their toes into the trail racing waters, and to offer more experienced trail racers a chance to sharpen […]

Black Squirrel Half Marathon @ Lory State Park, Bellvue, Colorado, United States on 06 September 2025

The Black Squirrel Trail Half Marathon takes place on the wonderful trails of Lory State Park to the northwest of Fort Collins, CO.

The trail half marathon course offers a tour of the outer boundaries of Lory State Park, providing breathtaking views to the east of Horsetooth Reservoir, Fort Collins and the Great Plains; and […]

Blue Sky Marathon & Half @ Blue Sky Trailhead, South Bay, Fort Collins, Colorado, United States on 18 October 2025

Taking place on the trails between Horsetooth Mountain Park and the Devil’s Backbone Open Space, the Blue Sky courses take you on a north-south tour of the easternmost hogbacks of Northern Colorado’s Front Range mountains. With a moderate amount of elevation gain and loss and a variety of terrain, the route offers a little bit […]

Never Summer 100k/60k Trail Race @ State Forest State Park, Gould, Colorado, United States on 25 July 2025

The Never Summer 100km & 60km will take place almost entirely within the boundaries of State Forest State Park and run between the Never Summer Mountains on the northern border of Rocky Mountain National Park (RMNP) and the Medicine Bow Mountains to the north of Cameron Pass.

The first 20 miles of each race will […]

Quad Rock 50/25mi Trail Race @ Lory State Park, Bellvue, Colorado, United States on 10 May 2025

Welcome to the Quad Rock 50 and 25 mile trail races, an event put on by trail runners for trail runners.

Taking place on the trails and hills west of Fort Collins in Lory State Park and Horsetooth Mountain Park, the Quad Rock 25/50 will take you on a tour of the Fort Collins skyline, […]

Horsetooth Half Marathon @ New Belgium Brewery, Fort Collins, Colorado, United States on 13 April 2025

Welcome to the 52nd running of the Horsetooth Half Marathon. Your race will take you on a scenic point-to-point journey from Hughes Stadium, the former home of the CSU Rams, to the finish line party at New Belgium Brewery. On the way you’ll tackle the challenging hills of Centennial Drive along the shorelines of the […]

Go Wild! Peninsula 2 Hr, 4 Hr @ Crestview Park Group Picnic Area, San Carlos, CA, United States on 19 April 2025

Enjoy a trail and wilderness scramble among the Spring wildflowers, forests, and broad views of the ridgeline open spaces in Redwood City, San Carlos, and Belmont. In teams of 1 to 5, use a custom map to find up to 24 checkpoints along the trails and in the wilds in 2 or 4 hours. Enjoy […]

Don’t Fence Me In Trail Run @ Pioneer Park, Helena, Montana, United States on 10 May 2025

Twenty-five years ago, a race was born in the heart of Helena. The Don’t Fence Me In Trail Run began as a grassroots effort to showcase the work of Prickly Pear Land Trust. Don’t Fence Me In has become a cherished Helena tradition and an enduring symbol of community and conservation. All funds raised support […]

Black Spur Ultra – Half Marathon @ Kimberley Alpine Resort, Kimberley, BC, Canada on 23 August 2025

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 […]

LewisGale Salem Half Marathon @ Salem Farmers Market, Salem, Virginia, United States on 11 October 2025

The City of Salem, known as “Virginia’s Championship City”, has hosted numerous NCAA National Championships as well as many other national and international sports tournaments. In 2016, we decided to branch out and bring that “Championship” mentality to running! The races start and finish at the Salem Farmers Market in downtown Salem, VA and take […]

Haunted Hills 5K, 10K @ Red Morton Park Picnic Area #3, Redwood City, CA, United States on 25 October 2025

Trick or treating for adults (and families) in teams of 1 to 5! Bring a headlamp or flashlight, and adventure through the wickedly decorated neighborhoods of Redwood City, finding awesome displays, and answering simple multiple choice questions about each… about 20 checkpoints on the 5k, 36 on the 10k. Enjoy refreshments & socializing at the […]

North Downs Run @ Cyclopark, Gravesend, England, United Kingdom on 29 June 2025

2025 sees the 41st staging of this annual event. The route of the North Downs Run passes through some of the finest scenery in Southern England. A challenging multi-terrain event, of approximately 30 kilometres using undulating paths and established tracks threading through woodlands, fields and parkland across the beautiful North Downs. Renowned for its friendly […]

Saddleback Marathon @ Black Star Canyon Road, Silverado, CA, United States on 26 April 2025

In 2024, we were hoping to go out of Blue Jay Campgrounds, which has been our tradition. But the “Airport” fire out of Trabuco Cyn closed that section of the Trabuco District in the Cleveland National Forest. So, we are re-routing for April’s race. We’re still in the Trabco District, but we’ll be going out […]

Triple Lakes Trail Race @ Bur Mil Park, Greensboro, NC, United States on 25 October 2025

The Triple Lakes Trail race is an iconic part of the North Carolina running scene. Centered around Lake Brandt, Lake Townsend, and Lake Jeanette, this race takes athletes through most of the amazing watershed trails in Greensboro. This race course is extremely well marked, well aided, and has very generous time cutoffs! Whether you are […]

Pilot Mountain to Hanging Rock Ultra & Relay @ Pinnacle, NC, United States on 20 September 2025

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.

Pilot Mountain to Hanging Rock has sold out annually since 2020.

Prove It 5K & 10K @ GM Milford Proving Ground, Milford, MI, United States on 17 May 2025

Run or walk along GM’s Milford Proving Ground! Think you’ve got the fastest 5k or 10K around? Put your money where your mouth is and come race on this world famous automobile test track. The course is challenging and beautiful and this is the only chance most mere mortals will get to visit this unique […]

Capital to Country Multi Day Ultra @ Sanku Gate, Kathmandu, Nepal on 23 November 2025

Are you ready for the adventure of a lifetime? Our stunning Capital to Country Ultra will see you run through the mesmerising Nepalese foothills with the mountains as your backdrop. This self-sufficient, 5 day, 123-mile race has been described as a cross between two of the top ultra races on the planet: The Marathon des […]

Bay 2 Bankers 5K, 10K @ Bay Side Of The Ferry Building, San Francisco, CA, United States on 04 July 2025

For the 13th running of the Bay 2 Bankers, we have yet another never-been-done-before mystery theme celebrating the classic vibes of San Francisco, starting near the Ferry Building and meandering through some classic neighborhoods of the city. Teams of 1 to 5 will use a custom map to navigate from checkpoint to checkpoint, answering simple […]

Left My Heart in S.F. 5K, 10K @ Andrea’s Fountain, Ghirardelli Square, San Francisco, CA, United States on 08 February 2025

A Valentine-themed adventure… there are lovely Hearts sculptures scattered around scenic spots in San Francisco’s neighborhoods. In teams of 1 to 5, you must find them! Answer a simple multiple-choice question at each checkpoint. There are dozens of heart sculptures out there. Your custom-made map will help you find them all. Enjoy refreshments & socializing […]

HarryMan Triathlon @ Harriman State Park, Stony Point, NY, United States on 17 May 2025

The HarryMan provides some of the best endurance challenges for the multi-sport athlete, and offers both “Half” Long Distance and Olympic distance events, including Relay & Aquabike categories. HarryMan is one of the most challenging early-season courses in the North East, and the perfect line up for Placid or Mid summer long distance events!

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Go Wild! Lime Ridge 2 Hour @ Lime Ridge Open Space Boundary Oaks Trailhead Parking Lot, Walnut Creek, CA, United States on 01 February 2025

Enjoy a trail and wilderness scramble among the majestic oaks, quarries, and grasslands of Lime Ridge Open Space. In teams of 1 to 5, use a custom map to find up to 20 checkpoints along the trails and in the wilds in 2 hours. Enjoy socializing and refreshments at the finish!

RunSedona @ Sedona, Arizona, United States on 01 February 2025

Experience the Magic of Run Sedona’s 20th Anniversary Event –

Get ready for an unforgettable race experience at the 20th anniversary of Run Sedona, an iconic event celebrated as one of the best races in the USA. Nestled amidst the stunning Red Rocks of Sedona, this running event offers participants a rare opportunity to race […]