Most Improved Colorado Boys 300m Hurdles Marks Compared to 2025

May 01, 2026

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Improvement Rankings: Top Colorado 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	-11.70	DeVaughn Singleton Northglenn High School	2028	58.19	46.49
2	-9.43	Isaiah Nevarez Heritage Christian Academy	2028	55.00	45.57
3	-9.32	Anarbold /Andy Uuganbayar Denver South High School	2027	53.07	43.75
4	-8.82	Cameron Glover Severance High School	2028	1:03.64	54.82
5	-7.47	Anderson Habana Yuma High School	2028	57.40	49.93
6	-7.4...