The Pho3nix Kids Duathlon is a children’s bike-and-run event connected to the JBL Triathlon Sieraków. It is organized by the Pho3nix Foundation and the Sieraków triathlon team. The event is designed for young participants, featuring short distances, specific routes, GPS-measured courses, and a focus on safety alongside competition.
The youngest participants can take part in the 100 m Pho3nix Kids Run. The duathlon offers three categories: a 1200 m bike ride followed by a 300 m run, a 2400 m bike ride with a 600 m run, and a 3800 m bike ride plus a 900 m run. This format provides children a straightforward introduction to multi-sport racing, with cycling and running segments conducted on controlled courses.