Most Improved Oregon Boys 400m Marks Compared to 2025

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Improvement Rankings: Top Oregon 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 -12.27 2026 1:02.71 50.44
2 -6.99 2028 1:05.24 58.25
3 -6.70 2028 1:06.79 1:00.09
4 -6.51 2027 1:06.11 59.60
5 -6.35 2038 1:03.87 57.52
6 -6.30 2027