Most Improved Delaware Boys 400m Marks Compared to 2025

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Improvement Rankings: Top Delaware 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 -8.04 2028 1:01.70 53.66
2 -5.75 2028 1:08.12 1:02.37
3 -5.38 2028 55.87 50.49
4 -5.32 2026 55.71 50.39
5 -5.16 2026 1:01.67 56.51
6 -4.82