Most Improved Sophomores: Top Boys 400m Performers in Arizona

MileSplit Staff
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Ranking the Most Improved Class of 2028 Boys 400m performers from Arizona compared to their 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 -17.57 2028 1:31.31 1:13.74
2 -13.00 2028 1:12.94 59.94
3 -10.90 2028 1:08.44 57.54
4 -10.50 2028 1:03.94 53.44
5 -8.72 2028 1:06.37 57.65
6 -8.04 ...