New to the sport of OCR? Don’t know what OCR means? Try below for definitions of commonly used phrase in obstacle course racing (that’s OCR).
| Big 3 | The top three race organizations in obstacle course racing – Tough Mudder, Spartan Race, and Warrior Dash |
| Bonk | Not the same as the british word bonk, this one means to run out of energy during a race. Can be from dehydration, hypernatremia, lack of food, or many other causes. |
| DNF | Did not Finish, when a racer fails to finish a race |
| OCR | Obstacle Course Race |
| ORM | Obstacle Racing Media, best website for Obstacle Course Racing news and reviews |