MileSplit Staff Apr 24, 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 400m marks compared to their season’s best performances from 2025. Most Improved - 400 Meter Dash Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 -23.02 Aubrey Coleman Racine Case 2028 1:50.27 1:27.25 2 -14.00 Johannah Grossinger Fall Creek 2028 1:21.66 1:07.66 3 -12.28 Renaya Horvath Greenwood 2026 1:41.47 1:29.19 4 -11.99 Anaya Bonn Nekoosa 2028 1:39.44 1:27.45 5 -9.24 Evalee Cole Amherst 2028 1:33.16 1:23.92 6 -8.92 Grace Zellner Abundant Life Christian