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 -4.85 2028 55.87 51.01
2 -4.41 2028 56.84 52.43
3 -3.67 2028 1:10.75 1:07.08
4 -3.61 2028 59.85 56.24
5 -2.85 2028 1:02.68 59.83
6 -2.63