2017 - 2018 Obstacle race Race Calendar in May

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized around the world during the month of May bearing the tag Obstacle race among 107 races.

Refine by

107 races

U.S. Canine Biathlon

Group Biathlon Registration
May 19, 2018 Race day in 11 months
USA / East South Central / Alabama / Anniston
Shorter than 10 km race - 4 miles
Obstacle race

U.S. Canine Biathlon

Individual Biathlon
May 19, 2018 Race day in 11 months
USA / East South Central / Alabama / Anniston
Shorter than 10 km race - 4 miles
Obstacle race

Gretna Gritty 2016 - Mud Run and Walk-A-Thon Fundraiser

Competitive Wave #1- 8:30 AM
May 07, 2016 The race has already taken place.
USA / Mid-Atlantic / Pennsylvania / Lebanon
Shorter than 10 km race - 1 miles
Obstacle race Mud

Gretna Gritty 2016 - Mud Run and Walk-A-Thon Fundraiser

Competitive Wave #2 8:50 AM
May 07, 2016 The race has already taken place.
USA / Mid-Atlantic / Pennsylvania / Lebanon
Shorter than 10 km race - 1 miles
Obstacle race Mud

Gretna Gritty 2016 - Mud Run and Walk-A-Thon Fundraiser

Competitive Wave #3 9:10 AM
May 07, 2016 The race has already taken place.
USA / Mid-Atlantic / Pennsylvania / Lebanon
Shorter than 10 km race - 1 miles
Obstacle race Mud

Gretna Gritty 2016 - Mud Run and Walk-A-Thon Fundraiser

Competitive Wave #4 9:30 AM
May 07, 2016 The race has already taken place.
USA / Mid-Atlantic / Pennsylvania / Lebanon
Shorter than 10 km race - 1 miles
Obstacle race Mud

Gretna Gritty 2016 - Mud Run and Walk-A-Thon Fundraiser

Nitty Gritty - Kids Run
May 07, 2016 The race has already taken place.
USA / Mid-Atlantic / Pennsylvania / Lebanon
Shorter than 10 km race - 1 miles
Obstacle race Mud

Gretna Gritty 2016 - Mud Run and Walk-A-Thon Fundraiser

Non-Competitive Wave #1 10:10 AM
May 07, 2016 The race has already taken place.
USA / Mid-Atlantic / Pennsylvania / Lebanon
Shorter than 10 km race - 1 miles
Obstacle race Mud

Gretna Gritty 2016 - Mud Run and Walk-A-Thon Fundraiser

Non-Competitive Wave #2 10:30 AM
May 07, 2016 The race has already taken place.
USA / Mid-Atlantic / Pennsylvania / Lebanon
Shorter than 10 km race - 1 miles
Obstacle race Mud

Gretna Gritty 2016 - Mud Run and Walk-A-Thon Fundraiser

Non-Competitive Wave #3 10:50 AM
May 07, 2016 The race has already taken place.
USA / Mid-Atlantic / Pennsylvania / Lebanon
Shorter than 10 km race - 1 miles
Obstacle race Mud

Gretna Gritty 2016 - Mud Run and Walk-A-Thon Fundraiser

Non-Competitive Wave #4 11:10 AM
May 07, 2016 The race has already taken place.
USA / Mid-Atlantic / Pennsylvania / Lebanon
Shorter than 10 km race - 1 miles
Obstacle race Mud

Gretna Gritty 2016 - Mud Run and Walk-A-Thon Fundraiser

Non-Competitive Wave #5 11:30 AM
May 07, 2016 The race has already taken place.
USA / Mid-Atlantic / Pennsylvania / Lebanon
Shorter than 10 km race - 1 miles
Obstacle race Mud