Most Improved Illinois Boys 400m Times Compared to 2025

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2026 Improvement Rankings: Highlighting the top Boys 400m performers from Illinois compared to their season best results from 2025.

Most Improved - 400 Meter Dash

Comparing 2026 season to 2025 season

Rank Improved Athlete/Team Class 2025 PR 2026 PR
1 -17.54 2028 1:16.55 59.01
2 -10.95 2028 1:12.92 1:01.97
3 -10.85 2027 1:27.45 1:16.60
4 -10.72 2027 1:26.48 1:15.76
5 -10.39 2026 1:04.51 54.12
6 -...