JOIN US JUNE 16, 2018

Michigan’s original 100-mile mountain bike race! The Lumberjack 100 always takes place on the third Saturday in June (June 16, 2018).  Registration will open on Bike Reg January 7th, 2018 at noon eastern. Don’t wait to sign up! This race is capped at 435 and sells out quickly every year.
The Lumberjack 100 will once again utilize a 33-mile loop through Michigan’s beautiful Manistee National Forest and the Big-M Ski Area. The Michigan style single track is composed mostly of hard pack trail, occasional sandy sections, and fast rolling terrain offering twists and turns that demand constant power, and total concentration as the trails quickly turn to nothing more than green blurs of forest. (If you’re expecting easy, fire-road coasting, look elsewhere!) Ninety percent of the 33-mile, 3-lap race is comprised of this single track that will eventually push racers over 9,000 feet of total elevation gain.

From the pro/elite racers, to those that will find victory in just surviving a race like the Founders Lumberjack 100, the post-race meal, Founders Ale and awards has also make this a must-be-there event!


We thank all of our sponsors for partnering with us to host the first 100-mile mountain bike race in Michigan! We couldn’t host this race and party without your involvement!! Please continue to support these great businesses for their generous contributions to our cycling community. See all our sponsors >


  • Specialized Bikes / LJ 100 Water bottles

    Thanks to our long time partner; Specialized Bicycless, all racers will once again receive a Lumberjack 100 water bottle at packet pick up. Thanks Specialized!! you...

  • LJ100 Presented by Treefort Bikes

    The 2018 Lumberjack 100 is proudly presented by Treefort Bikes.  They have EVERYTHING you need to be ready for race day; Bikes, parts, gear, accessories, nutrition. Check out their online site today

  • Race day pre-planning information

    Closing in on one month till race day!!  As you finalize your training and the details of your trip, we wanted to provide some pre-planning information on topics like; Race location, lodging, transfer process and deadline, packet pick up…. Here’s the file We’ll follow up......

  • Founders at the Finish line

    After a long hard day in the saddle, Founders Brewing Co. will be at the finish to cheer your race!...

  • Merrell- doing whats natural since 1981

    Thank you Merrell for partnering with the LJ100 and for making shoes and apparel that make our adventures even better!...

  • Lodging options ( Camping & Hotel)

    Just over 6 weeks till race day, getting REALLY excited as we pull together final details. If your still looking for lodging ( camping or hotel) this google maps link should help you see whats around the Big M race venue area. 4040 Udell Hills......