Most Improved Illinois Boys 1600m Marks Compared to 2025

Apr 03, 2026

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Improvement Rankings: Top Illinois Boys 1600m marks compared to their season’s best performances from 2025.

Most Improved - 1600 Meter Run

Comparing 2026 season to 2025 season

Rank	Improved	Athlete/Team	Class	2025 PR	2026 PR
1	-1:31.85	Nathan Berhane Chicago (St. Ignatius College Prep)	2026	6:31.81	4:59.96
2	-1:16.90	Henry Klohr Waterloo (H.S)	2027	6:33.30	5:16.40
3	-55.45	Gavin McKeen Wheaton-Warrenville South	2029	5:54.74	4:59.29
4	-51.05	David Lents Lawrenceville	2028	7:19.40	6:28.35
5	-49.39	Holden Sies Gillespie	2029	6:52.79	6:03.40
6	-46.60	Conrad...