At the 2023 European Indoor Championships in Istanbul, Kevin Mayer won the men's heptathlon, with Sander Aae Skotheim second and Risto Lillemets third.
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.
Between 1980 and 1981, Bulgarian female athletes like Daniela Nenova, Emilia Kunova, and Valentina Dimitrova made rapid progress in pentathlon and heptathlon, setting national records and achieving personal bests in multiple competitions,