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 South Dakota Girls 800m marks compared to their season’s best performances from 2025. Most Improved - 800 Meter Run Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 -24.39 Iris Birnbaum Rapid City Stevens High School 2029 2:46.56 2:22.17 2 -20.97 Amelia Loban Hamlin High School 2028 3:27.12 3:06.15 3 -15.79 Aubree Blue De Smet 2026 2:55.47 2:39.68 4 -15.19 Jayda Jensen Watertown High School 2028 2:55.45 2:40.26 5 -13.72 Izabella Kastner Parker High School 2029 3:10.57 2:56.85 6 -12.97 Jasm...