MileSplit Staff Apr 17, 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 -5.37 Reece Caudill Middleton 2026 1:11.11 1:05.74 2 -3.97 Viola MacDonald Augusta 2027 59.11 55.14 3 -3.84 Olivia McCauley Hillsboro 2028 57.39 53.55 4 -3.67 Autumn Aschinger Notre Dame Academy 2028 59.07 55.40 4 -3.67 Antanica Johnson Saint Thomas More 2028 1:06.52 1:02.85 6 -3.45 Audrey Johnson Sun Prairi...