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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
Working with the Best

Our partners

We would like to thank all of our sponsors who support us both financially and with their expertise.

Contact us

Do you have any questions about the O-SEE Ultra Trail or would you like to support us? We look forward to your message!

Thank you for your message. We will get in touch with you shortly.

Address

O-SEE Sports e. V.

Theodor-Korselt-Straße 7

02763 Zittau

+49 (0)3583 5409876

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