Most Improved Iowa Girls 400m Marks Compared to 2025

Apr 03, 2026

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

Most Improved - 400 Meter Dash

Comparing 2026 season to 2025 season

Rank	Improved	Athlete/Team	Class	2025 PR	2026 PR
1	-11.33	Emery Schrader Clinton	2028	1:24.64	1:13.31
2	-10.38	Nalani Fernandez Cedar Rapids Washington	2027	1:28.71	1:18.33
3	-8.17	Kaylee Ness Spencer Community High School	2028	1:45.12	1:36.95
4	-7.51	Richna Mduku-Mavinga Waterloo West High School	2028	1:22.45	1:14.94
5	-5.91	Riley Buttz Maquoketa	2028	1:13.49	1:07.58
6	-5.16	Arden Ab...