Course description
The Xenofit middle distance of the BerlinTriathlon in Treptow, held for the 20th year in 2026: 1.9 km swim, 88.2 km bike, 19 km run. The swim is two 950 m laps in the river Spree around the Insel der Jugend island, where the start and finish are as well. The bike is twelve 7.37 km laps on fully closed roads between Treptower Park and Plänterwald, and drafting is allowed. The run is four 4.75 km laps through the Plänterwald park along the Spree.
Coach tip
Two 950 m laps around the Insel der Jugend island in the Spree, starting at 8:30 am. The referees decide on wetsuits only one hour before, based on the water temperature; the measuring station on the Müggelsee lake gives you a guide. In 2025 the swim was halved because the water was too cold — get used to cool open water.
Drafting is allowed (only within your own gender), so only a classic road bike is permitted: no aero bars, no disc wheels, handlebars no wider than 50 cm — leave your time-trial bike at home. Train group riding and changes of pace rather than long aero sessions. Twelve laps with a turnaround: the chip counts them, but reset your bike computer to 0 before the start anyway.
Four run laps of 4.75 km through the Plänterwald, and the finish closes at 3 pm. Collect your race pack on Friday 3–7 pm or Saturday 11 am–4 pm on Bulgarische Straße; your check-in time is in the start list two weeks before. Without a DTU race licence you need a day licence for €17. You only get your bike back from 3 pm.