MileSplit Staff Mar 13, 2026 PRO See the rest of this article Access the complete article with MileSplit PRO. Subscribe to keep reading Already a subscriber? Log in. Middle School Improvement Rankings: Highlighting the top California Girls 400m performers this Outdoor Season compared to 2025. Most Improved - 400 Meter Dash Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 -37.08 Gianna Battaglia-Baker Pacific United Track Club 2038 2:28.18 1:51.10 2 -13.21 Ava Dulan St. Felicitas Catholic MS 2035 1:39.72 1:26.51 3 -12.67 Isabelle Case Pacific United Track Club 2038 1:57.27 1:44.60 4 -11.67 Neko Fry Pacific United Track Club 2038 1:30.27 1:18.60 5 -11.32 Kalia Dangerfield Holy Spirit-St. Mary Magdalen (CYO-LA) 2035 1:30.6...