Obstacle race Race Calendar

Gladiator Assault Challenge

Boone, Iowa, United States

May 16, 2026 (Sat) – May 17, 2026

Obstacle race

9.7K 5K +56

14th Annual Mudder's Day Madness Mud Run 5K & Fun Run 2026

Maryville, Tennessee, United States

May 9, 2026 (Sat)

Obstacle race

5K 1.6K

The JEF Challenge Obstacle Run

West Jordan, Utah, United States

May 9, 2026 (Sat)

Obstacle race

4K

Newbsanity Mud Gauntlet

Binghamton, New York, United States

May 9, 2026 (Sat)

Obstacle race

5.6K

Battle Run Benefiting A Soldier’s Child Foundation

Lewisburg, Tennessee, United States

May 2, 2026 (Sat)

Trail running, Obstacle race

Marathon Half-Marathon 5K 6.4K +5

VOG Guardian Run

Bandera, Texas, United States

May 2, 2026 (Sat)

Obstacle race

1K 2.4K

Run Wild Races XII: Run for Tortoises Spring 2026 @ Metro Richmond Zoo

Moseley, Virginia, United States

May 2, 2026 (Sat)

Running, Obstacle race, Walking

1.6K 5K 3.2K +1

Red Dirt Mud Run

Nacogdoches, Texas, United States

May 2, 2026 (Sat)

Obstacle race

5K

Daniel Barden Mudfest 5 Mile, 5k & Kids Mud Run

Deansboro, New York, United States

May 2, 2026 (Sat)

Obstacle race

8K 5K 1.6K +3

Dark Ages Night Obstacle Race

McHenry, Illinois, United States

May 2, 2026 (Sat)

Obstacle race

5K +9

Mythic Race 2026

Sikeston, Missouri, United States

Apr 11, 2026 (Sat) – Jul 1, 2026

Running, Obstacle race

4.8K 5K 2.4K +9

New England OCR Expo 2026

West Boylston, Massachusetts, United States

Mar 28, 2026 (Sat) – May 28, 2026

Obstacle race, Adventure race, Running

Ultra 5K