Most Improved South Dakota Boys 800m Marks Compared to 2025

May 08, 2026

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

Most Improved - 800 Meter Run

Comparing 2026 season to 2025 season

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Rank	Improved	Athlete/Team	Class	2025 PR	2026 PR
1	-30.11	Jeffrey Sanchez Scotland High School	2026	3:45.52	3:15.41
2	-27.91	David Lethlean Rapid City Central High School	2029	2:45.86	2:17.95
3	-24.92	Jaxon Tollefson Mt. Vernon/Plankinton High School	2028	2:56.78	2:31.86
4	-23.85	Andrew Schwab Aberdeen Christian School	2029	2:51.94	2:28.09
5	-22.69	Nathan Flanagan Harrisburg High School	2028	2:35.70	2:13.01