Most Improved Illinois Boys 300m Hurdles Marks Compared to 2025

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Improvement Rankings: Top Illinois Boys 300m Hurdles marks compared to their season’s best performances from 2025.

Most Improved - 300 Meter Hurdles

Comparing 2026 season to 2025 season

Rank Improved Athlete/Team Class 2025 PR 2026 PR
1 -18.16 2027 1:03.40 45.24
2 -16.19 2027 58.23 42.04
3 -11.41 2028 1:06.56 55.15
4 -10.60 2027 54.56 43.96
5 -10.49 2029 1:03.75 53.26
6 -10.18