The Lumberjack 100 takes riders through 100 miles of Michigan’s Manistee National Forest, combining technical singletrack with the mental challenge of a multi-lap format. The course consists of four 24-mile loops preceded by a 4-mile road prologue, creating a unique race dynamic where riders repeatedly encounter the same terrain while battling cumulative fatigue.

This Team Barry-Roubaix production has built a reputation for exceptional race support over its 20-year history. Aid stations at the start/finish and halfway point keep riders well-supplied, while the post-race atmosphere centers around Founders beer and a substantial meal. The competitive field spans sport to pro categories, drawn by a $7,000 prize purse that notably offers equal payouts for top male and female finishers.

The Manistee National Forest terrain delivers classic Midwest singletrack through dense woods and rolling terrain. Veterans describe it as a true test of endurance and bike handling skills, with the lap format adding psychological complexity as riders must pace themselves across familiar ground that feels different with each pass.

Registration opens each January and sells out within 15 minutes, testament to the event’s standing in the endurance mountain biking community. A waitlist system automatically moves riders into open spots when transfers occur. The limited field size maintains the quality experience that has made this one of the Midwest’s premier 100-mile mountain bike races, attracting riders willing to travel for the combination of challenging terrain and top-tier event execution.