Most Improved Oklahoma Boys 400m Marks Compared to 2025

Apr 10, 2026

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Improvement Rankings: Top Oklahoma Boys 400m marks compared to their season’s best performances from 2025.

Most Improved - 400 Meter Dash

Comparing 2026 season to 2025 season

...

Rank	Improved	Athlete/Team	Class	2025 PR	2026 PR
1	-20.20	Victor Silveyra Santa Fe South High School	2030	1:30.42	1:10.22
2	-12.93	Landon Achziger Jones High School	2030	1:20.02	1:07.09
3	-11.70	Easton Bratcher Sweetwater High School	2028	1:15.79	1:04.09
4	-11.35	Donairius Brown Union 8th Grade Ctr	2030	1:22.77	1:11.41
5	-9.85	Ronnie Spain Hydro-Eakly High School	2028	1:14.93	1:05.08
6	-8.60