グランフォンド嬬恋 (Gran Fondo Tsumagoi) takes place on Sun, Oct 25, 2026 in Kita-Karuizawa, Naganohara, Gunma, Japan. The main route is 101 km.
- Date
- Sun, Oct 25, 2026
- Start
- Kita-Karuizawa, Naganohara, Gunma 🇯🇵
- Distance
- 101 km
- Climbing
- 2,373 m
- Level
- Open to all
Your 3-week plan to グランフォンド嬬恋 (Gran Fondo Tsumagoi)
The Taper 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.
Build my planFree to start · No credit card
A non-competitive mountain gran fondo looping Mount Asama from Kita-Karuizawa, with 79.9 km and 101.0 km (2,373 m climbing) routes. Its autumn edition runs jointly with Gran Fondo Karuizawa on the same course.
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
5:05–6:05
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 グランフォンド嬬恋 (Gran Fondo Tsumagoi) is 3 weeks away. This is how a coach divides that time. The first phase starts now.
01Taper2 weeks · Oct 5, 2026 – Oct 18, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
02Race week1 week · Oct 19, 2026 – Oct 25, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is グランフォンド嬬恋 (Gran Fondo Tsumagoi)?
グランフォンド嬬恋 (Gran Fondo Tsumagoi) takes place on Sun, Oct 25, 2026 in Kita-Karuizawa, Naganohara, Gunma, Japan.
How long is グランフォンド嬬恋 (Gran Fondo Tsumagoi)?
The main route is 101 km.
How much climbing does グランフォンド嬬恋 (Gran Fondo Tsumagoi) have?
グランフォンド嬬恋 (Gran Fondo Tsumagoi) has 2,373 m of climbing.
Who is グランフォンド嬬恋 (Gran Fondo Tsumagoi) for?
グランフォンド嬬恋 (Gran Fondo Tsumagoi) is open to all participants.
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