FunTrails Round 秩父&奥武蔵 takes place on Sat, Nov 14, 2026 in 秩父市, Japan. The main route is 160 km.
- Date
- Sat, Nov 14, 2026
- Start
- 秩父市 🇯🇵
- Distance
- 160 km
- Level
- Open to all
秩父羊山公園を基点に、アップダウンを繰り返す秩父＆奥武蔵らしいトレイルと寺社仏閣をお楽しみいただけます。
Official event pageWhat this race demands
This 160 km trail running event requires sustained multi-day or ultra-distance endurance over rolling terrain.
Ultra Distance
Covering 160 km demands exceptional aerobic capacity, pacing discipline, and the ability to manage fatigue over many hours of continuous movement.
Terrain Adaptability
The course features continuous rolling hills and technical trail surfaces typical of the region, requiring robust muscular endurance in the lower limbs.
Given the extreme duration of a 160 km ultra, athletes should consume 60 to 90 grams of carbohydrates per hour to maintain energy balance.
Your road to race day
Race day at FunTrails Round 秩父&奥武蔵 is 12 weeks away. This is how a coach divides that time. The first phase starts now.
01Build6 weeks · Aug 23, 2026 – Oct 3, 2026
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
02Peak3 weeks · Oct 4, 2026 – Oct 24, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
03Taper2 weeks · Oct 25, 2026 – Nov 7, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
04Race week1 week · Nov 8, 2026 – Nov 14, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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