Most Improved Colorado Boys 800m Marks Compared to 2025

May 01, 2026

This content requires a MileSplit Pro plan.
Join Now and select any plan for instant access!

MileSplit Pro Join Now

Improvement Rankings: Top Colorado Boys 800m marks compared to their season’s best performances from 2025.

Most Improved - 800 Meter Run

Comparing 2026 season to 2025 season

Rank	Improved	Athlete/Team	Class	2025 PR	2026 PR
1	-55.09	Cooper Merket Golden High School	2028	4:02.53	3:07.44
2	-52.09	Wadie Ali Broomfield High School	2027	3:51.56	2:59.47
3	-46.97	Eddie Perez Rocky Ford High School	2028	3:43.52	2:56.55
4	-44.50	Ryan Marcinkowski Aspen High School	2028	3:05.95	2:21.45
5	-43.90	Adrian Vis Boulder High School	2026	3:15.00	2:31.10
6	-40.55	Cody Cran...