The Mt. Tammany 10

Blairstown, United States • 22 Mar 2025

The Mt. Tammany 10 is an ultra-running event set in the challenging terrain of the Delaware Water Gap, NJ. This grueling race covers nearly 40 miles, featuring 10 climbs and over 10,000 feet of elevation gain, making it a true test for seasoned ultrarunners.

Participants will navigate a demanding course that includes stunning mountain views and picturesque waterfalls. The event requires runners to complete 10 loops, with check-ins at the Start/Finish Pavilion after specific loops. This race promises to be one of the toughest yet most rewarding experiences for those seeking a significant challenge in the ultrarunning community. Visit the organization's website for the most recent information.

Race information

40 mi
10000 m+
40 Miler
Visit the organization's website for the most recent information.
Trail runs nearby

The Wawayanda Trail Fest is an exciting endurance event taking place in Wawayanda State Park, New Jersey. Scheduled for April 26, 2025, the festival features a variety of race distances, including a 100K, 50-mile, 50K, and half marathon, all set against a scenic backdrop of rhododendron tunnels, mar..

The 47th Annual Woods and Lakes Run is a running event taking place in Mountain Lakes, New Jersey. This event features two races: a traditional 10K and a simultaneous 5K, both open to participants aged 30 and over. The scenic course includes a mix of macadam walkways, gravel paths, and wooded trails..

The Trails To the Sky 50k/10k is an exciting trail running event set to take place on May 3, 2025, at Voorhees State Park in Glen Gardner, NJ. Participants can choose between a challenging 50k course, which features approximately 4500 feet of elevation gain, or a 10k course with around 900 feet of g..

UTMB Index

XTERRA New Jersey is an exciting off-road sports event taking place in Wawayanda State Park, New Jersey. Scheduled for May 3-4, 2025, it is part of the XTERRA World Tour and features a variety of races, including off-road triathlons, duathlons, and trail runs. Participants can choose from multiple d..

The Green Traill 5K is an annual running event taking place in Easton, PA, on May 3-4, 2025. This unique race is set in a cemetery, offering participants a scenic route through 84 acres of rolling hills and historic monuments. The event features a 5K run, a 2-mile untimed walk, and a Kids Fun Run, m..

The "3 Days at the Fair" event in Augusta, NJ, is a unique running festival scheduled for May 12-18, 2025. Participants can choose from various timed races, including 144, 72, 48, 24, 12, and 6-hour options, as well as marathon and 50K distances. The course features a certified 1-mile loop on a mix..