BACKYARD ULTRA SWIMRUN AMSTERDAM

June 20th, 2026

Days
Hour
Minutes
Seconds

The BackYard Swimrun of Amsterdam

Take up the challenge!

Register now for the Experience of Ultra

Every hour you start the same lap of 5km. Experience is for anyone who wants to do 1-3 laps, the Ultra has a maximum of 10 laps. 

Included in participation
  • A unique swimrun competition!
  • Access to Athlete Zone
  • Timekeeper
  • Medal / memento
Discover the Twiske

Open water, dikes, windmills and tranquility. A unique route just 10 minutes from Amsterdam.

Solo & Duo

Go for your own race or share the challenge. Also available as a Mixed Duo! 

BEAUTIFUL NATURE RESERVE

About the Twiske

On the outskirts of Amsterdam lies ’t Twiske, a vast reed moorland landscape with open water, narrow strips of land and sweeping vistas. The area is characterized by peace, space and a strong presence of nature, despite its proximity to the city.

The Twiskepolder, with the Twiske Mill as its landmark, consists of several lakes that are interconnected. Because motorized boat traffic is not permitted here, the waters remain calm and orderly. This ensures clear sightlines, little disturbance and a safe environment for water and outdoor sports. Take the unique opportunity to swimrun right through Natura2000 territory! 

 

THE BACKYARD (ULTRA) SWIMRUN AMSTERDAM

WILL YOU BE COMPETING FOR THE PODIUM SOON?

From beginner to competitive runner; this event is suitable for every swimrunner. In the Experience you run a maximum of 3 laps, to a maximum of 15km. In the Ultra you run up to 10 laps and compete for a spot on the podium. There will be a top 3 ranking for all solos (M/F) and duos (M/F/Mix). All participants will also receive individual timekeeping. 

max distance from the Ultra
0 km
Maximum number of rounds
0
Run per round
0 m
Swimming per round
0 m

The course

The course leads you right through the beautiful Twiske. How many laps will you take on the challenge? Each lap consists of a total of +- 5 kilometers, with a total of; 

Running (4130 meters)
0 x
Swimming (970 meters)
0 x

Questions?

Contact

Contact the Backyard Swimrun Amsterdam organization:

Email:

info@twiskeswimrunners.nl

Address:

Sportpark 7, Landsmeer