Grave Digger Race, Sparks

The word "extreme" is often overused by sodas, tortilla chips, and Vanilla Ices, but it definitely applies to the rough-and-tumble Grave Digger Race. In a merciless 5-mile course, competitors huff, puff, and soil their skivvies as they charge across intense, soggy terrain in their quest for victory. Along the muddy path, racers must hurdle a slew of 23 daunting obstacles, including walls made of tires, walls made of rope, and walls made of wall. Beer, food, showers, and contestant medals help alleviate postrace fatigue, and proceeds from the race benefit the Oklahoma chapter of Bikers Against Child Abuse.