O-SEE Ultra Trail takes place on Sat, Oct 17, 2026 in Oybin, Germany. The main route is 100.2 km.
- Date
- Sat, Oct 17, 2026
- Start
- Oybin 🇩🇪
- Distance
- 100.2 km
- Climbing
- 3,451 m
- Level
- Open to all
The XTERRA O-SEE Ultra Trail is a multi-distance trail running weekend held in and around Kurort Oybin in the Zittau Mountains Nature Park, featuring technical sandstone-lined courses ranging from short youth distances up to a demanding 100 km ultra.
Official event pageWhat this race demands
The O-SEE Ultra Trail demands prolonged physical endurance and sustained climbing over a 100.2-kilometer sandstone-lined trail course in October.
Distance and Duration
Covering 100.2 kilometers requires deep aerobic endurance and the ability to maintain forward motion for many consecutive hours.
Climbing Volume
Accumulating 3451 meters of elevation gain across the Zittau Mountains places a heavy demand on uphill stamina and eccentric leg strength for descents.
Technical Terrain
Navigating the technical sandstone-lined courses demands continuous focus and ankle stability throughout the entire distance.
Given the duration will well exceed 2.5 hours, athletes should target an intake of 60 to 90 grams of carbohydrates per hour to sustain energy levels.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
Your road to race day
Race day at O-SEE Ultra Trail is 8 weeks away. This is how a coach divides that time. The first phase starts now.
01Build2 weeks · Aug 23, 2026 – Sep 5, 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 · Sep 6, 2026 – Sep 26, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
03Taper2 weeks · Sep 27, 2026 – Oct 10, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
04Race week1 week · Oct 11, 2026 – Oct 17, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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