Most Improved Iowa Boys 1600m Marks Compared to 2025

Apr 17, 2026

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Improvement Rankings: Top Iowa Boys 1600m 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	-1:27.08	William Petersen Ankeny Centennial HS	2028	6:13.77	4:46.69
2	-51.03	Clayton Vermeer Sioux Center High School	2029	6:26.02	5:34.99
3	-50.64	Kendrick Puffer Ankeny Centennial HS	2028	6:19.37	5:28.73
4	-48.15	Jake Merschbrock Waukee Northwest	2028	6:20.74	5:32.59
5	-46.25	George Baumgarten Johnston High School	2028	5:50.14	5:03.89
6	-44.22