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Trail run

FunTrails Round 秩父&奥武蔵

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
Climbing
9,722 m
Level
Open to all
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Your 6-week plan to FunTrails Round 秩父&奥武蔵

The Peak phase starts this week. Built around your fitness and adjusted every day as your form changes; attach the course and it prepares for the climbs too.

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Starting from Chichibu Hitsujiyama Park, you can enjoy the characteristic Chichibu & Oku-Musashi trails with repeated ups and downs, as well as temples and shrines.

What 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 6 weeks away. This is how a coach divides that time. The first phase starts now.

  1. 01Peak3 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.

  2. 02Taper2 weeks · Oct 25, 2026 – Nov 7, 2026

    Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.

  3. 03Race week1 week · Nov 8, 2026 – Nov 14, 2026

    Openers, rest and logistics. The work is done; the job now is arriving fresh.

Get this plan built around your own fitness

Frequently asked questions

When is FunTrails Round 秩父&奥武蔵?

FunTrails Round 秩父&奥武蔵 takes place on Sat, Nov 14, 2026 in 秩父市, Japan.

How long is FunTrails Round 秩父&奥武蔵?

The main route is 160 km.

What does FunTrails Round 秩父&奥武蔵 demand?

This 160 km trail running event requires sustained multi-day or ultra-distance endurance over rolling terrain.

How much climbing does FunTrails Round 秩父&奥武蔵 have?

FunTrails Round 秩父&奥武蔵 has 9,722 m of climbing.

Who is FunTrails Round 秩父&奥武蔵 for?

FunTrails Round 秩父&奥武蔵 is open to all participants.

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