It has been a long time since a Swiss man exceeded 8000 points for decathlon. It was in 2003, to be exact, when Rolf Schläfli achieved 8019 in Götzis and became only the 5th man ever over 8000.
Trościanka's performance included a world U20 decathlon best of 46,21 seconds in the 400 meters and a championship best of 68.87 meters in the javelin throw.