MileSplit Staff May 08, 2026 PRO See the rest of this article Access the complete article with MileSplit PRO. Subscribe to keep reading Already a subscriber? Log in. Improvement Rankings: Top Wisconsin Girls 300m Hurdles marks compared to their season’s best performances from 2025. Most Improved - 300 Meter Hurdles Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 -8.32 Gretjen Buchholz Riverdale 2026 1:02.44 54.12 2 -8.22 Brooke Dorner Bay Port 2028 59.72 51.50 3 -6.39 McKenzie Bekker Altoona 2027 59.76 53.37 4 -6.16 Isabella Cruckson Three Lakes 2026 1:08.27 1:02.11 5 -5.97 Elena Calderon Valley Christian - Oshkosh 2028 1:10.74 1:04.77 6 -5.82 Jamie McCauley Waupun ...