
Course Grading:
EASY
INTERMEDIATE
DIFFICULT
+
Kurort Oybin is located in the heart of the Zittau Mountains Natural Park. The start and finish area is in Puschpark/Bürgerallee in the centre of the village. There is a car park in the immediate vicinity as well as gastronomic facilities, hotels, B&Bs and an excellent leisure infrastructure.
Note: The tourist information office of the municipality of Oybin will assist you in finding accommodation if required
+
Yes, each race has age requirement to be able to register:
O-SEE 100K: from 18
O-SEE 75K: from 18
O-SEE 50K: from 18
O-SEE 25K: from 16
O-SEE 16K: from 16
+
The organisation fee includes the following services:
O-SEE starter bag with giveaway
Finisher medal for all participants
Prize Money for top 3 male & female athletes of XTERRA O-SEE 50k and XTERRA O-SEE 25k over all
Prizes for top 3 male & female athletes of XTERRA O-SEE 50k and XTERRA O-SEE 25k of each XTERRA AG division. Categories: 19U, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69, 70-74, 75-79, 80+, and Physically Challenged
Prizes for top 6 male & female athletes of O-SEE 100k, 75k und 16k (Trail)
Prizes 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, 16th October 2026, 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
+
Yes, each race has a time limit to complet the race:
O-SEE 100K: 20 hours
O-SEE 75K: 15 hours
O-SEE 50K: 10 hours
O-SEE 25K: 7.5 hours
O-SEE 16K: 6 hours
Please note that some races also have cut off times at specific points of the course:
O-SEE 100K
K45: Hochwald/Pod Hvozdem (50.822337 N, 14.722908 E) at 1:00 pm
K50: Mařenice/Antonínovo údolí (50.807339 N, 14.666308 E) at 2:00 pm
K85: Brandsteinweg/Wiesenweg (50.831850 N, 14.741903 E) at 8:45 pm
O-SEE 75K
K45: Hochwald/Pod Hvozdem (50.822337 N, 14.722908 E) at 3:00 pm
O-SEE 50K
K43: Stern Jonsdorf (50.838489 N, 14.715849 E) at 4:00 pm
O-SEE 25K
K17: Stern Jonsdorf (50.838489 N, 14.715849 E) at 4:00 pm
+
Participants of the O-SEE 100k can change to the shorter distance 75k during the running competition. This switch is possible with timing and scoring. The organisation office must always be informed of this by telephone or at the latest by announcing it at the course switch point. Participants who reach the cut off point “K85 Brandsteinweg/Wiesenweg" after 8:45 pm must run directly towards the finish.
Switch Points:
O-SEE 100k ➘ 75k: Mařenice/Antonínovo údolí (50.807339 N, 14.666308 E) at K50
O-SEE 100k ➘ 75k: Brandsteinweg/Wiesenweg (50.831850 N, 14.741903 E) at K85 … (total distance 86 kilometers)
Participants of the O-SEE 75k can change to the shorter distance 50k during the running competition. This switch is possible with timing and scoring. The organisation office must always be informed of this by telephone or at the latest by announcing it at the course switch point.
Switch Points:
O-SEE 75k ➘ 50k: Hochwald/Pod Hvozdem (50.822337 N, 14.722908 E) at K45
+
Yes, O-SEE 100K, O-SEE 75K, O-SEE 50K and O-SEE 25K can 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.
Please not that DUOs will not be rewarded for the European Championship.
+
Yes, all routes are marked.
However, markings may be missing or changed by rain, wind, vandalism or order-loving fellow citizens. It is recommended that all trail run participants carry a GPX-enabled phone or navigation watch with the track/route data of the respective route stored. The participant should be able to find the route even in the absence of markers.
+
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 area)
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
+
O-SEE 100k: 11 x food/drink (3 x Self-catering available)
O-SEE 75k: 8 x food/drink (3 x Self-catering available)
O-SEE 50k: 6 x food/drink (1 x Self-catering available)
O-SEE 25k: 3 x food/drink
O-SEE 16k: 2 x food/drink
There are further catering options in the finish area.
Runners of the O-SEE 100k, the O-SEE 75k and the O-SEE 50k may have their own food and beverages deposited at the refreshment point “Auf der Heide”, “Hostinec U Tří Lip“ and “Malevil“. Please hand in any such items in a container (no glass) marked with your name and race number to the refreshment desk (Event Area) by 8:00 pm on Friday at the latest.
For all Trail Runs no cups will be provided at the refreshment points. You must bring your own drinking containers to receive drinks.
Refueling before running is important, which is possible at our pasta dinner the night before between 5:00 pm and 8:00 pm. Reservation is required with the online registration in order to ensure admission (+ € 5.00).
+
All O-SEE 75k, O-SEE 50k and O-SEE 25k participants will be provided with a small GPS tracker device at the check-in in the start and finish area. The tracker must be worn during the entire race and returned after crossing the finish line.
In the case of abandonment of the race, the GPS tracker and the start number must be handed in at a respective refreshment point. In the event of non-return or damage of the GPS tracker, the participant will be invoiced for the amount of € 100.
+
The XTERRA Trail Run World Series aims to unify the entire global XTERRA trail run community in a single series that is inclusive and accessible for any and all trail run enthusiasts around the world.
Different to the many elite and performance-focused series that exist, the XTERRA Trail Run World Series combines three of XTERRA’s dearest values: Challenge, Adventure, and Community, to create a series that is open to all, provides the opportunity to explore the most beautiful trails the world has to offer, and to do so in the company of one of the friendliest communities in the racing industry.
More info https://www.xterraplanet.com/trail-run-world-series
+
The XTERRA Trail Run World Championship is an annual, invite-only event in which participants must qualify by winning age group slots at qualifying events.
XTERRA Trail Run World Championship: https://www.xterraplanet.com/event/xterra-trail-run-world-championship
Qualification Rules: https://www.xterraplanet.com/race-rules/trail-run-world-championship-qualification














Interested in Our Events?
Subscribe to get all the latest event info and more.