Most Improved Michigan Boys 400m Marks Compared to 2025

MileSplit Staff
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Improvement Rankings: Top Michigan 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 -19.66 2027 1:19.21 59.55
2 -18.21 2026 1:17.27 59.06
3 -16.62 2028 1:22.04 1:05.42
4 -16.39 2026 1:07.80 51.41
5 -14.10 2027 1:13.01 58.91
6 -13.67