Most Improved National Boys 300m Hurdles Marks Compared to 2025

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Improvement Rankings: Top National 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 -26.91 2028 1:11.66 44.75
2 -13.07 2027 54.75 41.68
3 -11.90 2026 55.73 43.83
4 -10.76 2027 55.51 44.75
5 -10.05 2026 52.44 42.39
6 -9.34 ...