Gempen Grinder takes place on Sat, Sep 26, 2026 in Muttenz, Switzerland. The main route is 153 km.
- Date
- Sat, Sep 26, 2026
- Start
- Muttenz 🇨🇭
- Distance
- 153 km
- Level
- Open to all
Gempen Grinder is a gravel cycling festival in Basel and the Jura, whose main ride on 26 September mixes gravel roads, forest singletrack and steep climbs before finishing at the Schänzli Graveldrome in Muttenz.
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
4:45–5:45
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 Gempen Grinder is 2 weeks away. This is how a coach divides that time. The first phase starts now.
01Taper1 week · Sep 13, 2026 – Sep 19, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
02Race week1 week · Sep 20, 2026 – Sep 26, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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