Most Improved Missouri Girls 400m Marks Compared to 2025

Apr 24, 2026

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

Comparing 2026 season to 2025 season

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Rank	Improved	Athlete/Team	Class	2025 PR	2026 PR
1	-14.45	Jordyn Keiser Washington High School	2028	1:16.98	1:02.53
2	-13.60	Samya Daniels Hogan Prep Academy Charter	2026	1:28.94	1:15.34
3	-11.88	Emma Golubski Webb City High School	2027	1:17.42	1:05.54
4	-11.54	Josephine Casas Liberty High School	2026	1:31.54	1:20.00
5	-11.46	Kalysta O'Haver Harrisburg High School	2027	1:25.75	1:14.29
6	-10.35