October 18, 2025
|
Bürgerallee/Kurpark, 02797 Oybin
XTERRA O-SEE Ultra Trail

XTERRA O-SEE Ultra Trail 50K

Trail Marathon

RUN 50K
Note
The information on this page is not yet confirmed, and may be based on the previous years' edition.

Not only will the more than 2,000 meters of altitude take your breath away on the (originally) hardest and longest kilometers of the Zittau Mountains, the spectacular views will also leave you breathless from time to time. This race can also be completed as a DUO. Necessity is the mother of invention, as they say. So why not tackle this endurance challenge as a team of two (Men, Women, or Mixed)? DUO teams start together, pass through each checkpoint together, and cross the finish line together. Individual scoring is not possible.

Registration opens on
Jan 3
Registration Closes on
Oct 19
Registration Closed

COURSE MAPS

This courses below are not yet confirmed, and subject to change.
Run: 50K 2340m+
Click through to see the run course map, description and download the GPX file.
Close

Start: 8:00 am

Age: from 18 years of age

Time limit: 10 hours

Cut-off times: km 43 (Stern) at 4:00 pm

Refreshment points: 6 (3x food, 6x drinks)

No cups will be provided at the refreshment points. You must bring your own drinking containers to receive drinks.

Checkpoints: Checks at hidden checkpoints may be carried out along the trails

sChedule

This schedule is not yet confirmed, and subject to change.
1
Fri 2025.10.17
+
2
Sat 2025.10.18
+

prizes

This information is not yet confirmed, and subject to change.

116

TRWC Slots

🏅 Medal

All Finishers

🏆 Trophy

Top Men & Women

Single: 1st to 6th place M/F overall will be awarded.

Team Duo: 1st teams DUO M/F/MIX will be awarded.

FEES

The fees below have not yet been confirmed, and are subject to change.
Registration from Jan 3rd - Oct 18th, 2025. Registration available onsite.

RACE FEES

Description Fee
First Mover - till 31 Jan 2025 55 €
Early Bird - 01 Feb till 30 April 2025 65 €
Forward Thinker - 01 May till 31 July 2025 70 €
On Time - 01 Aug till 08 Oct 2025 75 €
On site 85 €

After your registration, you will receive your personal registration confirmation by email. This entitles you to pick up your starting documents at the starting documents desk. You can only pick up your race documents without a registration confirmation upon presentation of your identity card.

Underage participants require the written consent of both legal representatives to start. This must be presented when collecting the starting documents.

The payment of the entry fees takes place directly during the online registration. The organisers have commissioned the company Baer-Service GmbH to handle the payment transactions. On the day of the competition, the entry fee can be paid in cash or by card and mobile payment services on site.

In the event of a complete cancellation of the event due to official or legal orders, the entry fee will be refunded minus a processing fee. This fee is € 10.00 for the Trail Runs and € 4.00 for the Light Run/Walking. For the Kids Runs, the starting place will be transferred to the next year in the form of a credit note.

Late entries are possible on site only upon availability up until 30 minutes before the start. The fee is € 10.00 in addition to the entry fee.

The organisation fee includes the following services:

  • O-SEE starter bag with giveaway

  • Finisher medal for all participants

  • Prizes for 1st - 6th place finishers M/F of each course (Trail Runs), for the first team DUO M/F/Mix (100k, 75k, 50k and 25k), for the first-placed M/F under 18s to Masters or 3 first-placed M/F under 6s to under 16s (Light and Kids Runs).

  • Printing of certificates directly at the finish line upon personal request and online for downloading

  • Electronic time recording with transponder system

  • Live GPS tracking for the 100k, 75k, 50k and 25k courses

  • Catering in the finish area and on the courses

  • Carb loading and pasta dinner on Friday, 17th October 2025, 5:00 pm to 8:00 pm (reservation with online registration)

  • Changing and shower facilities

  • Luggage storage in the start/finish area

  • Individual runner photos by Sportograf (photos can be purchased after the event)

  • Comprehensive medical care along the course by the DRK and the Zittau Mountains mountain rescue service as well as a senior accident doctor

RULES & INFO

The information below may be from a previous edition of the event, and is subject to change.

2 ITRA points, UTMB Qualifier 50K.

Minimum required age: 18 during the year.

Limited to 150 participants.

Recommended and mandatory gear

For all Trail Runs we recommend taking the following equipment with you:

  • Mobile phone with the emergency number stored and the possibility to send location data via WhatsApp, SMS or similar application

  • GPX-capable phone or navigation watch with the stored track/route data of the respective route

  • First Aid Kit (tape bandage, elastic bandage, compress, plaster)

  • Closed trail running shoes with tread sole

  • Weatherproof clothing

  • Running backpack

  • Safety whistle

It is compulsory to bring the following equipment:

  • 100k/75k/50k/25k/16k: Drinking container to receive drinks at the refreshment points

  • 100k/75k/50k/25k: GPS tracker device (will be available for pickup at the check-in in the start/finish are

  • 100k/75k/50k: Water container with at least 1 litre of liquid

  • 100k/75k/50k: Energy gels & bars

  • 100k/75k/50k: Mobile phone (which must be able to make calls abroad)

  • 100k/75k/50k: GPX-capable phone or navigation watch with the stored track/route data of the respective route

  • 100k/75k: Headlamp

  • 100k/75k: ID and Health insurance card

Disqualification

Anyone who leaves the running course, does not follow the regulations, does not pass a control post, behaves in an unsportsmanlike manner or abuses doping will be disqualified.

Other

Dogs are not allowed as companions on the course.

The conditions of the organisers O-SEE SPORTS e. V. according to the announcement, competition regulations and organisational guidelines as well as the conditions of participation are binding.

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