Sean Donnelly - :50.22 (2015)
Josiah Dunker - :52.40 (2019)
Isidore Warain - :53.61 (2024)
Ryan Melquist - :53.95 (2021)
Casey Bretz - :54.28 (2023)
Ayden Pana - :54.65 (2025)
AJ Dehnke - :55.32 (2022)
Izyndro Warain - :55.95 (2024)
Jonah Wetrosky - :56.71 (2021)
Sam Kvam - :57.42 (2025)
Brayden Slavik - :57.56 (2022)
Alex Meyer - :57.83 (2023)
Calvin Urevig - :58.61 (2024)
Danton Dale - :58.82 (2023)
Joey Petersen - :59.36 (2025)
Andrew Pana - :59.42 (2022)