Whangarei's Scott Gregory had the judges scrambling at the ASB Northland Secondary Schools' Athletics Championships, nailing a new championship record by more than 10m.
Gregory, 15, threw the open age hammer a whopping 53.25m, which saw judges running to fetch a longer measuring tape.
The Whangarei Boys' High School student, who was a bronze medallist in the 2013 National Championships, was just one of many top performances at the event at ASB Sports Arena.
Kerikeri High School's Imogen Hull, who excels in the classroom as well as on the track, remained unbeaten in the 3000m for a fourth consecutive year - Hull ran a national class time of 10 minutes 54.67 in doing so.
Whangarei Girls' High's Aimee-Leigh Scott showed the ability to perform beyond her years, as possibly the youngest athlete she won the 300m hurdles recording 54.08 seconds. In the process, Scott also recorded the fastest time run by a 12-year-old Northland athlete.