Trail Running Calendar United States 2025-2026

Set at Wakulla Springs State Park, 15 miles south of Tallahassee, the Tallahassee Ultra Distance Classic marks its 44th edition. The event offers 50-mile and 50K ultramarathon distances and a USATF-certified marathon, eligible as a Boston Qualifier; a 2025 addition adds a Marathon Rucker Division. T..

The Tinsel Trot 10k in Louisa, VA, is a festive cross-country running event held at Southern Revere Cellars. The course loops around the winery property, with the 10k consisting of four laps and the 5k two laps, featuring gentle terrain without major hills. Participants enjoy a chip-timed race with..

OUTLAST Austin is a six-hour trail endurance challenge held at Dripping Springs Ranch Park and Event Center in Dripping Springs, Texas. Runners complete a 5K lap every hour, for six hours; missing a lap ends your run. The course is trail-based with dirt, rocks, roots, and elevation, with occasional..

The Jingle Trails Challenge presented by Merrell is a festive trail running event held at McAllister Park in San Antonio, Texas. Scheduled for December 13, 2025, it features two race distances: a 10K on the Blue Loop and a 5K primarily on the Red Trail. Participants will navigate technical terrain i..

The Pocahontas Half is a scenic running event held at Pocahontas State Park near Richmond, Virginia. It features a half marathon, 10k, and 5k race, all taking place on the forested Bright Hope Trail, which offers a soft dirt and pine needle surface with some minor hills. The half marathon course is..

The 20th Annual Vail Jingle Trail takes place in Tucson, Arizona, and offers two festive races: a 5K and Santa’s Little Helper 1K, highlighted for Saturday, December 13, 2025. The event embraces a holiday spirit with decorated courses, cheering crowds, and motivation from Mica Mountain Cross Country..

Run for a Claus presented by Optima Tax Relief is an annual charity run in Irvine, California, hosted on the University of California, Irvine Ring Road campus. The event features a 5K and a Kids 1 Mile Run/Walk, with virtual 5K and virtual 1 Mile options for those who prefer to participate remotely...

Beast of the East 100 is a multi-distance trail ultra in Kings Mountain, North Carolina, hosted by Dirty Wolf Racing. Distances include 100 Miler, 100K, 50 Miler, Marathon, and Half Marathon on the Crowders Mountain trails, featuring two summits and lake views. The 2025 course uses a Crowders Ridge..

2025 Pigtails Run in Maple Valley, Washington marks its 20th year with the event’s Fat Ass vibe. It offers 50K, marathon, and half-marathon distances, starting and finishing at Four Corners in Maple Valley. The course mostly uses paved river trails, with some dirt and gravel, using out-and-back sect..

Rudolph Run in Manayunk, Philadelphia, is a festive 3-mile fun run along the Manayunk canal path. The course starts at the Manayunk Bridge Pocket Park, with check-in at 4358 Main Street. Participants are invited to dress in holiday attire—lights, reindeer antlers, red noses, and ugly sweaters.The ev..

Helen Holiday Half & 10K takes place in Helen, Georgia, and centers on a festive, scenic trail experience. The event offers a half marathon (approximately 13 miles) and a 10K, both run on mountain trails rather than roads. Runners should expect elevation, a big climb, and technical sections, with co..

The Mount Hood Nutcracker Challenge is an annual cross-country running event held at the Mount Hood Golf Club in Melrose, Massachusetts. This unique 3.5-mile race features a challenging, hilly course that changes every year, incorporating fairways, paved cart paths, road crossings, and wooded sectio..

RunFluent Christmas in Lutz, Florida returns for year three with options for a 4-mile race or a 7-hour multi-lap challenge, including a 7-hour, two-person relay. The event takes place at 17302 N Dale Mabry Hwy. Race-day atmosphere features a race T-shirt for every participant, finisher awards, and t..

The Frosty Buck Trail Race takes place in Glenmont, Ohio, and offers 50k and 25k trail distances built on the original BBTBU loop. In this revival, the event returns to a standard format rather than the Backyard Ultra style. The 50k consists of a 2-mile opening segment followed by seven loops of the..

2025 Hark the Herald Half Marathon & 10K, the 37th annual edition, takes place at Angel Island State Park, Belvedere Tiburon, California. The Half Marathon is two loops on a hilly trail; the 10K is a single loop. The event is limited to 400 participants, creating an intimate atmosphere with panorami..

#RUNMARANA Dirt Dash at Wild Burro takes place at the Wild Burro Trailhead in Tortolita Mountain Park, Marana, Arizona (14810 N. Secret Springs). The event offers a Half Marathon (13.1 miles) and a 6-mile option.The course starts with a flat 2-mile Wild Burro Trail segment, then about 9 miles of sce..

MCW The Holmdel Classic is an end-of-year trail challenge held at Holmdel Park in Monmouth County, New Jersey. The course features a 4.65-mile loop (about 50K for 7 laps, halfish for 3 laps), 95% trail and double track, with 584 feet of elevation per lap and Holmdel’s signature “The Bowl.” Runners e..

Saturnalia is a winter trail running event held at Squaxin Park in Olympia, Washington. Featuring a 10K distance, it offers participants a festive holiday atmosphere amid the challenges of winter trails, darkness, and variable weather conditions. The event celebrates the season with a fun and spirit..

SRC Presents: A Backyard Ultra takes place at Blydenburgh County Park in Hauppauge, NY on December 13–14, 2025. The event features two races: A Backyard Ultra, a true ultramarathon where runners must complete a 4.167-mile loop within an hour, repeatedly until only one runner remains; and The 1 Lappe..

Crystal Cove Trail Run, the SoCalTrail season finale, unfolds in Crystal Cove State Park, El Moro, Laguna Beach, just minutes from Orange County’s beaches. Runners choose between the El Moro 15k (9.35 miles with 1,647 ft of elevation gain) and the Cut-Across 6k (4.1 miles, 696 ft), plus a Kids 1k co..