Underdown takes place on Sat, Aug 21, 2027 in Gleason, United States. The main route is 59.5 km.
- Date
- Sat, Aug 21, 2027
- Start
- Gleason 🇺🇸
- Distance
- 59.5 km
- Level
- Open to all
Underdown is a Northern Wisconsin mountain-bike race held on challenging glacial singletrack with hills, isolated lakes and boardwalks, and it is part of the Wisconsin Endurance Mountain Biking Series (WEMS).
What would it take you?
Pick the level closest to yours for an estimate of finish time on this course and the training a solid preparation needs.
Estimated finish
1:45–2:10
Peak-week training
6–8 h/week
A model estimate from distance, climbing and level, not a promise. Conditions, drafting and pacing move it.
IntervalCoach turns those weekly hours into a concrete plan built around your actual fitness. Start with this race as your goal
Your road to race day
Race day at Underdown is 49 weeks away. This is how a coach divides that time. The first phase starts now.
01Base37 weeks · Sep 13, 2026 – May 29, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · May 30, 2027 – Jul 10, 2027
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
03Peak3 weeks · Jul 11, 2027 – Jul 31, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · Aug 1, 2027 – Aug 14, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Aug 15, 2027 – Aug 21, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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