Hundred Down in the Underdown

August 13st, 2022

This is Wisconsin’s Ultimate Lap! The Iron Bull Epic!
A 33 mile single track loop that combines the best of the old school with zippy machine built renovations. Ride past 4 lakes, 5 bermed boardwalks and 70 hills all the way to the Prairie Dells overlook and back.

Food, drink and Strava games to follow. Music by the Big Road Band. Pints to all finishers.
This event is held simultaneously with the Iron Bull Underdown Trail Races so you’ll get to party with those poor runners.

WEMS Underdown Mountain Bike Races

8:00 AM (Hundred Down in the Underdown)
Long-distance Solo: 3 laps completed between 8AM and Midnight. Riders completing two laps will be scored after riders completing three laps.

9:00 AM (Thunderdown in the Underdown)
Mid-distance Solo: One 33-Mile lap

Long-distance Duo: One 33-Mile lap completed by each rider both starting at 9AM (NOT a tag team relay!)

9:15 AM (Oktoberfest Climbathon)
Short-distance Solo: One 13-Mile lap. Finish this and change your shoes by 11:30am and earn a free entry to the Oktoberfest Half-Marathon

Mid-distance Duo: One 13-Mile lap completed by both riders starting at 9:15AM (NOT a tag team relay!)

Long-distance Team: One 13-Mile lap completed by all riders starting at 9:15AM (NOT a tag team relay!)

IRONBULL Underdown Trail Running Races

9:30 AM (IRONBULL Prairie Dells 50K Run Start)

10:00 AM (IRONBULL Heineman Hills Marathon Run Start)

11:30 AM (IRONBULL Oktoberfest Half-Marathon Run Start)

W.E.M.S. Guidelines: All W.E.M.S. guidelines will be followed.