
O-SEE 100k




100.7 km
Distance

4:00 am
Start

3,654 m+
Elevation

20h
Time limit

11 x
Stations
O-SEE 100k Ultra Trail & Team DUO
Would you like a little more? For the first time in 2025, we are offering a genuine ultra trail over 100 kilometers. The track runs for around 35 kilometers through the Bohemian part of the Lusatian Mountains. You will be amazed!
Age
From 18 years of age
Awards
SINGLE: 1st - 6th place M/F Overall Team
DUO: 1st place M/F/Mix
Entry fee
Staggered, from € 110.00 / € 190.00
Cut off
For the safety of all runners, there is a cut-off time at the following points:
-
Hochwald/Pod Hvozdem
(50.822337 N, 14.722908 E)
K45 / 1:00 pm -
Mařenice/Antonínovo údolí
(50.807339 N, 14.666308 E)
K50 / 2:00 pm -
Brandsteinweg/Wiesenweg
(50.831850 N, 14.741903 E)
K84 / 8:45 pm

Course profile
Mandatory and suggested equipment
There is a mandatory equipment requirement and additional recommendations for participating in the trail runs. Sporadic checks are carried out.
The mandatory equipment includes:
Pflicht | O-SEE 100k | O-SEE 75k | O-SEE 50k | O-SEE 25k | O-SEE 16k |
---|---|---|---|---|---|
Drinking container (no cups at the refreshment points) | X | X | X | X | X |
Water container | 1 L | 1 L | 1 L | ||
Energy gels & bars | X | X | X | ||
GPS tracker device (will be available at the check-in) | X | X | X | X | |
GPX-capable phone or navigation watch with track/route data | X | X | X | ||
Mobile phone | X | X | X | ||
Headlamp | X | X | |||
ID and Health insurance card | X | X |
Suggested Equipment:
Empfehlung | O-SEE 100k | O-SEE 75k | O-SEE 50k | O-SEE 25k | O-SEE 16k |
---|---|---|---|---|---|
Closed trail running shoes with tread sole | X | X | X | X | X |
Weatherproof clothing | X | X | X | X | X |
Running backpack | X | X | X | X | X |
Mobile phone (with emergency number) | X! | X! | X! | X | X |
GPX-capable phone or navigation watch with track/route data | X! | X! | X! | X | X |
First Aid Kit (tape bandage, elastic bandage, compress, plaster) | X | X | X | X | X |
Safety whistle | X | X | X | X | X |