MileSplit Staff Mar 27, 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 Kentucky 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 -11.84 Shyla Haverstick Christian County 2028 1:25.77 1:13.93 2 -9.39 Kaydee Horseman Anderson County 2029 1:22.33 1:12.94 3 -6.16 Mariah Burton Campbell County 2027 1:07.51 1:01.35 4 -5.98 Ja'Lynn Sanderson Pleasure Ridge Park 2026 1:16.46 1:10.48 5 -4.79 Sierra Elder Graves County 2028 1:24.29 1:19.50 6 -4.70 Raquel Williams ...