Grizzlyman – Run takes place on Sat, May 22, 2027 in Olešná, Czechia. The main route is 42 km.
- Date
- Sat, May 22, 2027
- Start
- Olešná 🇨🇿
- Distance
- 42 km
- Level
- Open to all
The 42 km mountain run of Grizzlyman, an extreme multisport event at Olešná Reservoir near Frýdek-Místek in the Beskydy Mountains; the half format runs 21 km.
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
3:40–4:25
Peak-week training
5–7 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 Grizzlyman – Run is 36 weeks away. This is how a coach divides that time. The first phase starts now.
01Base24 weeks · Sep 13, 2026 – Feb 27, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Feb 28, 2027 – Apr 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 · Apr 11, 2027 – May 1, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · May 2, 2027 – May 15, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · May 16, 2027 – May 22, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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