3. Wald(Ultra)Marathon Calw
3. Wald(Ultra)Marathon Calw is a 46 km ultramarathon in Calw-Altburg, Germany, taking place on Dec 20, 2026.
- Date
- Dec 20, 2026
- Distance
- 46 km
- Location
- Calw-Altburg, Germany
- Format
- Fixed distance
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- 7. 6-h-Lauf am Förderturm BönenJul 25, 2026 · Bönen, Germany · 6 h