Most Improved Oklahoma Boys 400m Marks Compared to 2025

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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 2030 1:30.42 1:10.22
2 -12.93 2030 1:20.02 1:07.09
3 -11.70 2028 1:15.79 1:04.09
4 -11.35 2030 1:22.77 1:11.41
5 -9.85 2028 1:14.93 1:05.08
6 -8.60