Most Improved South Dakota Boys 400m Marks Compared to 2025

May 29, 2026

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Improvement Rankings: Top South Dakota Boys 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	-17.61	David Bixler Hitchcock-Tulare High School	2029	1:26.81	1:09.20
2	-17.03	Jace Bender Leola High School	2028	1:14.35	57.32
3	-10.53	Chris Radford Irene-Wakonda High School	2028	1:25.06	1:14.53
4	-9.75	Sam Baker Rapid City Stevens High School	2028	1:15.96	1:06.21
5	-8.38	Case Carlson Lake Preston High School	2029	1:04.62	56.24
6	-8.36