Trey Hardee dominated the men’s decathlon at the 2014 US Championships in Sacramento, winning the national title with an impressive 8599 points and finishing 792 points ahead of runner up Wesley Bray.
Niklas Kaul won the men’s decathlon at the 2017 European Athletics U20 Championships in Grosseto, scoring a championship ‐leading 8435 points ahead of Johannes Erm (8141) and Karel Tilga (8002), making this a key result in the European U20
Devon Williams won the men’s decathlon at the 2019 US Championships in Des Moines with 8295 points, finishing ahead of Solomon Simmons and Harrison Williams.
The 1977 European Athletics U20 Championships in Donetsk offered an early glimpse of two athletes who would later become major figures in world decathlon. Great Britain’s Daley Thompson captured the European junior decathlon title with 7646
Dan O’Brien won the 1994 US Championships decathlon in Knoxville with 8707 points, successfully defending his national title ahead of Steve Fritz and Kip Janvrin in a competitive American championship field.
Dan O’Brien won the 1993 US Championships decathlon in Eugene, securing the American national title ahead of Steve Fritz and Robert Muzzio in a competitive field featuring several of the country’s leading decathletes.
Dan O’Brien won the 1991 US Championships decathlon in New York with 8844 points, finishing well clear of Dave Johnson (8467) and Robert Muzzio (8119) in a no-wind-information (NWI) competition.
In 1988, Külvet surpassed his best decathlon with a score of 8506 points in Staiki, Belarus. This achievement placed him second in the world that season, just behind Christian Plaziat of France.