Most Improved Colorado Boys 400m Marks Compared to 2025

Mar 27, 2026

PRO

See the rest of this article

Access the complete article with MileSplit PRO.

Already a subscriber? Log in.

Improvement Rankings: Top Colorado Boys 400m marks compared to their season’s best performances from 2025.

Comparing 2026 season to 2025 season

...

Rank	Improved	Athlete/Team	Class	2025 PR	2026 PR
1	-16.45	Nick Clark Soroco High School	2026	1:14.37	57.92
2	-12.95	Tegan Damers Lotus School for Excellence High School	2026	1:13.92	1:00.97
3	-9.63	Chase Comer Mountain Vista High School	2028	1:05.59	55.96
4	-9.25	Jasiah Alvarez Delta High School	2028	1:09.78	1:00.52
5	-7.91	Justin Saglembeni Palmer Ridge High School	2028	1:11.32	1:03.41
6	-7.71