How long will it take to complete a Tough Mudder?

The average finish time for a Tough Mudder 5K is 1-2 hours; Tough Mudder 10K is 2-2.5 hours; and for Tough Mudder 15K it’s 3.5-4 hours. That said, Tough Mudder 5K, 10K, and 15K aren’t timed events, so you can go at your own pace. How long an event will take you depends on your level of fitness, your experience, and whether or not you’ve been training. (Not so much? Download our free training guides.)