5x, 10x, 20x

From 12 to 31 August 2019, a DOUBLE DECA (20x), a DECA (10x) and a QUINTUPLE (5x) Ultratriathlon will be held in the city of Buchs in the St. Gallen Rhine Valley (Switzerland). All three competitions will be held in the "one per day" version and are part of the IUTA World Cup 2019. Every day a long distance triathlon has to be completed: 3.8km swimming, 180km cycling and 42.2km running. The start is always at 7 o'clock in the morning; the finish on the following day is at 3 o'clock in the morning. 


The registration deadline for all competitions is 1 July 2019. Our athletes must have completed a minimum of one Ironman or Ultra-Triathlon in 2018 or 2019. Similar endurance competitions can also be recognised as qualifying events. If you are not sure whether you are qualified for a swissultra race, please contact the race organizers at and tell us more about your sports career.


At swissultra, numerous benefits are included in the entry fee. Our kitchen is open daily from 6 a.m. until the last finish and offers athletes hot meals, snacks and drinks at all times. in the support zone, everyone has access to electricity, WLAN, refrigerators and freezers. Our partner Beat Sport offers a great bike service, and diligent masseurs take care of the well-being of the athletes.


Ein Schwimmer im Freibad Buchs (Foto vom swissultra Triathlon 2018)



August 12–31, 2019
20x 3.8km swim
20x 180km bike
20x 42,2km run


August 22–31, 2019
10x 3.8km swim
10x 180km bike
10x 42,2km run


August 27–31, 2019
5x 3.8km swim
5x 180km bike
5x 42,2km run


Ein Radfahrer auf dem Rheindamm isst ein Eis (Laurent Quignette aka Bretzel Man, Teilnehmer swissultra Triathlon



Handicapped athletes are welcome at all swissultra competitions. The bike course is easy for hand or knee bikers, as Quintuple finisher Walter Eberle impressively proved in 2017. We offer a special route for wheelchair users, as a part of the original running route leads through the forest along a natural trail. The International Ultratriathlon Federation IUTA has a separate category "Handicap". If you are interested or have any questions, please contact the organizing committee via email (



On 24 August 2019, we are offering a "swissultra relay" for sponsors, employees of the city of Buchs and guests of honour. The team members (3-8 persons) will complete a long distance triathlon together with the ultra triathletes: 3.8 km swimming, 180 km cycling and 42.2 km running. There is one chip per team for timekeeping, which can be passed on at any time. Handicapped athletes or mixed groups are also welcome! If you are interested, please contact the organizing committee (