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 -8.88 2028 1:00.25 51.37
2 -8.76 2027 1:01.14 52.38
3 -7.54 2026 55.67 48.13
4 -6.86 2028 1:05.23 58.37
5 -4.87 2028 54.34 49.47
6 -4.67 2028