In 1994, Robert Boeder completed the Grand Slam of trail ultrarunning finishing four 100 mile trail races in one summer (14 weeks). In this classic first person narrative he describes the physical, mental, emotional and spiritual challenges of completing the Old Dominion 100 Miler, the Western States 100 Mile Endurance Run, the Leadville Trail 100 and the Wasatch Front 100 Mile Endurance Run. Boeder lives in Silverton, Colorado, where he runs and writes every day.