SwimRun half marathon


The pivotal point is Ottenstein Castle, which offers a unique panorama for the start and finish, as well as registration, award ceremony, race briefing and the final banquet in a medieval setting.


The participants over the half-marathon distance experience the most important part of the Ottenstein reservoir with its untouched nature in the Lower Austrian Waldviertel.

11 running and 10 swimming sections * (a total of 4.8 km) offer a lot of variety in this fjord-like landscape. Since 2020 there has been an additional loop through the Lichtenfeld ruins right at the beginning, followed by a swimming section along the impressive rocky landscape.


* If the water level is low, the swimming section to the small island in section 16 could be omitted!


The half-distance route can be mastered both individually and in a team.

The start and finish in front of Ottenstein Castle are a unique experience. The natural trails, the Lichtenfels ruins, some power places and surprises as well as wonderful views arise along the entire route.


New: in 2022, after the trial loop, the half marathon will lead directly in the swimming section to the campsite and with a short swim to the running section in Mitterreith.

The start is at 11 a.m. depending on the current Covid-19 regulations in a block, in 15-second slots or together. The usual distance and hygiene regulations then generally apply to sports. This will be informed in advance.


The competition briefing takes place contactless via Facebook Lifestream on Saturday 4 p.m. and is then available online. It is mandatory to comply with all rules.

The half marathon route is identical to the marathon route. Therefore there will probably be some encounters with the starters of the marathon competition.

While the trial starters turn back to the castle at the first hotspot, the half marathon and marathon starter set off together on the long lap towards Zwettl.


- Experience shows that the water temperature at the Ottenstein reservoir is between 18 and 20 degrees. The latest information and guidelines regarding clothing (e.g. neoprene ban etc.) are available at least 1 week before the competition.

Route marking: Unfortunately you have to reckon with people who remove route markings. Therefore will

Since 2020, emphasis has been placed on 3-fold marking with tapes, floor markings and signs. In addition, there is a graphic representation of the next section for each route section.

Attention: Split evaluation for teams: Teams under 90 years of age and 90+ years of age are also evaluated.


Please be aware of our mandatory rules 


Registration fee !


SwimRun Halfmarathon Single

85,- Euro (until 31.12.)

95,- Euro (until 15.3.)

105,- Euro (until  15.5.)

115,- Euro (until the Event)


SwimRun Halfmarathon Team

145,- Euro (until 31.12.)

165,- Euro (until 15.3.)

185,- Euro (until  15.5.)

205,- Euro (until the Event)


Included in the price:


Swimming Cap
Race briefing
Starterbag by MadWave
Finisher medal
Water rescue
Meals range at the finish line
Banquet in the castle


Age Group Classes


Teams are scored m / w / mixed.


New: In addition, in 2020 there will be a score split in under 90 years and 90 years + total age



group age                                              age                   

general class women (W0)         16 till 39        

general class men (W0)               16 till 39         


general class women 2 (W l)       40 till 99         

general class men 2 (W l)             40 till 99         



Program / schedule of SwimRun competitions



Friendship Run and test material



Registration marathon / half marathon: 5.30 p.m. - 7.00 p.m.


Competition briefing: 4.00 p.m. via Facebook live stream, questions can be posted, the live stream is then available as a video.


Barbecue evening in the castle, according to the given Corona gastro rules!



Registration: 8.30 am - 10.00 am

Start of the SwimRun half marathon: 11 a.m.

Finish: from 1.15 p.m.


Banquet from 1:00 p.m. with voucher

Award ceremony: about  3.30 p.m. half marathon,

Award ceremony for the cup will be after the half marathon



Brunch and small talk


All about our tracks

Download of the tracks

the V represents catering