Obstacle Race Calendar United States 2025-2026

Aug

29-31

Fr - Su

The Ultimate Suck

Cuba, Illinois

4 hr 12 hr 36 hr

The Ultimate SUCK is an intense endurance event held at Decker Farm in Cuba, Illinois, featuring challenging 36-hour, 12-hour, and 4-hour races. Combining elements of trail running, military-style boo..

Aug

30-31

Sa - Su

Midwest Deka Fit & Ultra

Fort Wayne, Indiana

5 km

The 2025 Midwest DEKA FIT & Ultra takes place at the Allen County War Memorial Coliseum in Fort Wayne, Indiana. This hybrid fitness challenge features a 5K course divided into 10 functional training z..

Aug

30

Saturday

5KX - The HYBRID 5k

West Palm Beach, Florida

5 km

5KX - The HYBRID 5k in West Palm Beach, Florida, is a 5K that blends running with functional fitness on a standardized race course. The event offers three formats: 5KX PRO - Individual, 5KX REC - Indi..

Aug

30

Saturday

Iridium Arena

Brentwood, New York

Sep

1

Monday

Penn Hills Labor Day 5k

Pittsburgh, Pennsylvania

5 km

The Penn Hills Labor Day 5k and Donut Dash is a community-focused running event held in Pittsburgh, PA, at 250 Aster Street. It features a traditional 5k run or walk, as well as the unique Donut Dash..

Sep

5-7

Fr - Su

Tough Mudder - Big Bear

Big Bear Lake, California

5 km 10 km

Tough Mudder Big Bear takes place in Big Bear Lake, California (Bear Mountain venue at 43101 Goldmine Dr). The weekend event offers two courses: a 5K with 12+ obstacles and a 10K with 20 obstacles. Th..

Sep

5-6

Fr - Sa

Austin Deka Fit & Ultra World Cup

Austin, Texas

5 km 25 km

The Austin DEKA FIT & Ultra World Cup is a dynamic fitness challenge held at the Palmer Events Center in Austin, Texas. The event features two main race formats: the DEKA FIT, a 5K course with 10 fitn..

Sep

5-7

Fr - Su

In-N-Out Tough Mudder Challenge

Big Bear Lake, California

5 km 10 km

The In-N-Out Burger Tough Mudder Challenge is a dynamic obstacle course event held at Bear Mountain Resort in Big Bear Lake, California. Scheduled for September 5–7, 2025, it features two race distanc..

Sep

6

Saturday

Savage Race - Maryland Fall

Kennedyville, Maryland

3 mi 7 mi

Sep

6

Saturday

Conquer the Gauntlet - Tulsa

Tulsa, Oklahoma

4 mi

Conquer the Gauntlet in Tulsa, Oklahoma, is an extreme 4-mile obstacle course race featuring over 25 challenging and unique obstacles. Unlike typical mud runs or short 5Ks, this event tests participan..

Sep

6

Saturday

Citizens Bank Park Spartan Stadion Weekend

Philadelphia, Pennsylvania

5 km

The 2025 Citizens Bank Park Spartan Stadion Weekend in Philadelphia offers a thrilling 5K obstacle course featuring 20 challenging obstacles designed to test strength, agility, and endurance. Set in t..

Sep

6

Saturday

Sterling Down and Dirty 5k

Stratford, Connecticut

5 km

Sterling Down & Dirty 5K is an obstacle-based, 5K fun run held at Short Beach, Dorne Drive, Stratford, CT. It caters to all fitness levels, offering 18+ obstacles along a beach course, with participan..

Sep

6-7

Sa - Su

West Virginia Spartan Trifecta Weekend

Mount Hope, West Virginia

5 km 10 km 21 km

The West Virginia Spartan Trifecta Weekend, held at the Summit Bechtel Reserve in Glen Jean, WV, is a premier obstacle course racing event set in rugged Appalachian wilderness. Featuring steep ascents..

Sep

6

Saturday

The Great Mud Escape

Warren, Rhode Island

The Great Mud Escape is a family‑friendly obstacle course in Warren, Rhode Island (43 Kinicutt Ave, Warren, RI 02885). The one‑mile course features obstacles, brain teasers, mud, and two giant mud pit..

Sep

6

Saturday

Crops & Cows Challenge Course

Washington Court House, Ohio

5 km

The Crops & Cows 5K Challenge Course is a running event held in Washington Court House, Ohio, at South Plymouth Pumpkins, 7105 OH-729. It offers multiple distance options: a 5K Challenge Course in com..

Sep

6

Saturday

Bear's Den Fitness Hybrid Race

Boyertown, Pennsylvania

20 min 60 min 100 min

Bear's Den Fitness Hybrid Race in Boyertown, PA, is a partner-focused, HYROX- and DEKA-inspired nine-station challenge. Teams of two tackle a 600-meter run to start each station, then split the reps a..

Sep

6

Saturday

Return of the Black Swamp Mud Run

Oak Harbor, Ohio

5 km

Return of the Black Swamp Mud Run returns to Oak Harbor, Ohio, offering a 5K mud run with 20+ obstacles. The revamped course aims to reclaim its former glory and includes both a standard “challenge” a..

Sep

7

Sunday

Heroes for Heroes 5k Obstacle or 5k Run/Walk

Etna, Ohio

Road Race 5 km

Heroes for Heroes 5K Obstacle or 5K Run/Walk takes place in Reynoldsburg, Ohio, at Reynoldsburg Civic Park (6800 Daugherty Dr, 43068). It offers two formats: an Obstacle 5K for individuals or 1 to 2 p..

Sep

13-14

Sa - Su

Vermont Spartan Event Weekend

Killington, Vermont

5 km 21 km 50 km

The Vermont Spartan Event Weekend takes place at Killington Ski Resort in the scenic Green Mountains of Vermont, the birthplace of Spartan Race. This challenging obstacle course event offers multiple..

Sep

13

Saturday

Dirty Dozen Obstacle Mud Run

Clemmons, North Carolina

5 km

Dirty Dozen 5K and Fun Run Obstacle Mud Run takes place at the Jerry Long Family YMCA in Clemmons, NC. It features a 5K obstacle course for ages 7 and up and a 1 Mile Fun Run for participants of all a..