Monterey Bay Mapathon & Half 26.2/13.1 @ Jewell Park Picnic Area, Pacific Grove, CA, United States on 19 April 2026

Explore the historical highlights and delightful views of the Monterey Peninsula in an epic way – a Mapathon (or Half)! A marathon distance of 26.2 miles “half” of 13.1 miles, with foot and foot+bike divisions. Teams of 1 to 5 will use a custom map to navigate a dozen or two-dozen checkpoints and 1 aid […]

Wild Goose Chase 5K, 10K @ Lime Ridge Open Space Boundary Oaks Trailhead Parking Lot, Walnut Creek, CA, United States on 21 February 2026

Trails, trails, trails, so many to choose from. Enjoy the majestic oaks, quarries, rocks, and labyrinths of Lime Ridge! But it’s not your typical 5K or 10K. The course isn’t marked! Follow a map to find 8 to 15 checkpoints, or maybe the person in front of you – if you trust where they’re going! […]

LewisGale Salem Half Marathon, 8K, and Kids Fun Run @ Salem Farmers Market, Salem, Virginia, United States on 10 October 2026

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 […]

Wolverine State 100 @ Alpena, MI, United States on 10 October 2026

From Lake Michigan to Lake Huron—The Journey Continues After an unforgettable debut in 2025, Wolverine State 100 returns for year two on October 10–11, 2026.

Runners, relay teams, and crews will once again take on the rare chance to cross Michigan’s Lower Peninsula from lake to lake, racing from Petoskey to Alpena on a route […]

Go Wild! MTZ 2 Hr, 4 Hr @ Nancy Boyd Park, Martinez, CA, United States on 31 January 2026

Enjoy a trail and wilderness scramble among the open spaces of Martinez, with lovely views of the Carquinez Strait, the Delta, and the Diablo range. 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 or 4 hours. Enjoy socializing […]

Wawayanda Trail Fest @ Wawayanda Boat Launch, Hewitt, NJ, United States on 25 April 2026

Wawayanda Trail Fest is back again but in the spring! Still with miles (not an exaggeration) of rhododendron tunnels, marsh bridges and both gravel road and single track! AND we’re adding a 100k!

Prove It 5K & 10K @ GM Milford Proving Ground, Milford, MI, United States on 18 April 2026

Prove It 5K & 10K – GM Milford Proving Ground April 18, 2026 – Milford, Michigan

Looking for a Michigan spring 5K or 10K that’s unlike anything else? Prove It 5K & 10K gives you exclusive access to the GM Milford Proving Ground, one of the most iconic and secretive automotive testing facilities in the […]

Blackhawk Bolt 5k & 1 Mile Fun Run @ North Buncombe High School, Weaverville, NC, United States on 15 November 2025

The 4th annual Blackhawk Bolt 5k & 1 Mile Fun Run is a unique road-to-trail course taking place fully on the campus of North Buncombe High School & benefits the NBHS PTSO.

Sapiston 5K/10K Trail Run @ Honington & Sapiston Village Hall, Sapiston, England, United Kingdom on 19 October 2025

Join us for a 5K and 10K trail run following footpaths and byways in a loop around Sapiston and Honington in Suffolk’s picturesque Black Bourn Valley. The route is a mix of road and off road and, as it also crosses a few minor roads and follows a short section of the Black Bourn river, […]

Northern Trails Trail Race @ Northern Guilford High School, Greensboro, NC, United States on 07 March 2026

The Northern Trails Trail Race returns to Greensboro, North Carolina, offering distances of 5 miles, 10 miles, and 17 miles. This early spring trail race challenges participants to run, ruck, or hike through the scenic trails along Lake Brandt and Lake Townsend. Over the years, racers have experienced it all—snow flurries, rain, and sunshine—making Northern […]

Winter Trail Fest Half Marathon & 5 Mile – Westside @ Yankee Springs Rec Area, Middleville, MI, United States on 21 February 2026

Run Winter Trail Fest in 2026

February 21, 2026 – Yankee Springs Rec Area, MI

Some call it the Winter Trail Fest. Others just think, What The F…?! Join Trivium Racing for a winter trail Half Marathon or 5 Mile run or ruck at Yankee Springs. Expect snow, mud, ice, and the infamous river crossing—unless […]

Winter Trail Fest East Half Marathon & 5 Mile @ Island Lake Rec Area, Brighton, MI, United States on 14 February 2026

Join Trivium for WTF Eastside!

Some call it the Winter Trail Fest. Others just think, “What the F…?!”

Join us at Island Lake in Brighton, Michigan for a Half Marathon or 5 Mile run or ruck designed to embrace the messiest, most unpredictable conditions February has to offer. Snow? Ice? Slush? Perfect. You’ll earn every […]

2nd GlobalLimits – Footsteps of Alexander the Great @ Samarkand, Uzbekistan on 24 April 2026

230 km – 6 stages / + 4.800m / – 5.000m

Experience Uzbekistan like no others.

GlobalLimits Uzbekistan is a thrilling 230km, 6-stages ultramarathon through the heart of the ancient Silk Road. Join the challenge: we meet at the UNESCO Heritage city of Samarkand, known as the Crossroads of Cultures and finish at the […]

Timberhonger 10K @ Sanders Park, Bromsgrove, England, United Kingdom on 31 August 2025

2025 will be the 20th running of the Timberhonger 10K, so called as most of the route is on Timberhonger Lane. Over the years the race has become famous for its friendly atmosphere and a picturesque course with the now infamous hill.

Billy Goat Mountain Climb @ Cleveland National Forest, Silverado, CA, United States on 04 April 2026

We have 3 great mountain climbs in this race: 10k, 1/2 half marathon and a 17 mile loop. The 10k and 1/2 begin on Maple Springs Road and follow the creek on a gradually inclining, beat-up asphalt road for about 1.5 miles. The climb picks up at the dirt truck trail where runners switchback up […]

12th Annual Newfound Firecracker 5K @ Kelley Park, Bristol, NH, United States on 04 July 2025

This is 5k fun run benefits the Newfound Region High School’s Cross Country Program. Hilly, urban road race starts at 8:30 am at the far end of Kelley Park near the Newfound Middle School (rain or shine). Check-in/day of registration starts at 7:30 AM Race t-shirts given to first 60 to pre-register before June 16! […]

RunSedona | Half Marathon / 10K / 5K / 5K Walk @ 3700 W State Rte. 89A, Sedona, AZ, United States on 07 February 2026

Experience the 21st annual RunSedona on February 7, 2026, amidst Sedona, Arizona’s breathtaking scenery! This first-class event offers a Half Marathon, 10K, 5K, and a family-friendly 5K Walk. Race through the legendary Red Rocks, treasured as one of the “Top Ten Most Beautiful Places,” and named “One of the 15 Most Scenic Half Marathons in […]

Laurel Highlands Ultra Fall Classic @ Laurel Highlands Hiking Trail, Ohiopyle, PA, United States on 27 September 2025

We are continuing to keep the Fall Classic fresh and find new ways to race on the LHHT.

The 2nd LHU Fall Classic will be the first ever Northend and Northbound 50K! And will include a 2 person relay option.

Starting at Mile 39 (Laurel Summit State Park) and ending at Mile 70 (Rt 56) […]

Pleasant Valley 5K Run/Walk, Aquathlon Challenge, and Dog Swim @ Pleasant Valley Pool, Chantilly, VA, United States on 06 September 2025

Come out for summer fun at the Pleasant Valley Pool. Enjoy a refreshing pool swim and run with our Swim/5K Aquathlon or skip the water and stay dry with a 5K fun run! In the afternoon, we’ll once again be holding our dog swim, when the pool will be only for a dogs only swim […]

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 […]