About Mass Mayhem

Climbing up a 12-foot cargo net. Clambering up inclined walls. Slithering through darkened tunnels. These might sound like the keys to escaping a medieval fortress, but really, they're three of the 20+ feats required to complete the four-mile Renegade Run. Its obstacle-studded course winds through a park, sometimes sticking to paved trails, other times cutting through rough terrain laden with exposed tree roots, rocks, and challenging hills.

Reaching the finish line doesn't just mean conquering a major physical challenge, either—it also means doing good for the community. Proceeds from the race help raise awareness of type 1 diabetes. Proceeds also help fund research on the disease at the Faustman Lab at Massachusetts General Hospital.