In order to be considered an eligible event completion and count toward your Legionnaire status, you must register, check-in and complete an event on any given Tough Mudder weekend.
You may only complete one of each event type per day to count toward your Legionnaire count. Multiple laps of the same event on one registration do not count, and you can't sign up for the same distance multiple times on the same day to increase your participation count.
Starting in 2022:
You may complete one of each event type per day to count toward your Legionnaire count. For example, you could run a Tough Mudder Classic/15k on a Saturday morning and a Tough Mudder 5k on Saturday afternoon for two event completions. You must register for both events separately or with a Season Pass, check in for both waves, start and complete both waves consecutively, not simultaneously.