Most Improved Colorado Girls 400m Marks Compared to 2025

May 29, 2026

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Improvement Rankings: Top Colorado Girls 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	-22.09	Aliyah Robinson Brighton High School	2028	1:33.09	1:11.00
2	-19.90	Emily Bernabe Fort Morgan High School	2028	1:31.04	1:11.14
3	-18.68	Ava Smith Basalt High School	2026	1:29.29	1:10.61
4	-16.93	Cecilia Ortiz-Simental Simla High School	2028	1:50.33	1:33.40
5	-16.70	Ra'Zyah Roberts Vista Peak High School	2028	1:25.82	1:09.12
6	-12.49