USA until 02 February 2020 – eligible to represent Australia in National Representative Competitions (see World Athletics Eligibility to Represent a Member Rule 1.4.2) from 31 July 2020
At the 2025 World Athletics Indoor Championships in Nanjing, Norway’s Sander Skotheim won the men's heptathlon with 6475 points, narrowly beating Estonia’s Johannes Erm.
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.
Hubert Trościanka made history at the European U20 Championships in Tampere, Finland, becoming the first athlete ever to surpass 8500 points in the U20 decathlon - rewarded with a new world record.