Ethan Katzberg wasn't a model of consistency Wednesday, but he only needed one strong throw to win his fifth consecutive men's hammer throw competition to start the 2025 season.

The reigning world and Olympic champion from Nanaimo, B.C., was the lone athlete in the field of seven to surpass 80 metres, throwing 80.19 in his third of six attempts at the Bislett Games Diamond League track and field meet in Oslo, Norway.

Katzberg, 23, came close to the 81.92 meet record by 36-year-old Wojciech Nowick…