Bison Gravel 100 takes place on Sun, Oct 4, 2026 in Supraśl, Poland. The main route is 109 km.
- Date
- Sun, Oct 4, 2026
- Start
- Supraśl 🇵🇱
- Distance
- 109 km
- Climbing
- 785 m
- Level
- Open to all
Bison Gravel 100 is a gravel cycling race starting and finishing in Supraśl, with an approximately 109 km route through the forest roads, gravel tracks and natural terrain of the Knyszyn Forest.
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
4:00–4:50
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 Bison Gravel 100 is 4 weeks away. This is how a coach divides that time. The first phase starts now.
01Peak1 week · Sep 7, 2026 – Sep 13, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
02Taper2 weeks · Sep 14, 2026 – Sep 27, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
03Race week1 week · Sep 28, 2026 – Oct 4, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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