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 Triple Jump marks compared to their season’s best performances from 2025. Most Improved - Triple Jump Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 +5' 2.25" Adelynn Timmermans Lennox High School 2026 26-08.75 31-11.00 2 +5' 2.00" Abigail Lee Britton - Hecla 2026 29-05.75 34-07.75 3 +3' 4.00" Adeylnn Schable Beresford High School 2030 29-08.00 33-00.00 4 +3' 2.25" Rhegan Sheppard Flandreau High School 2030 30-00.75 33-03.00 5 +2' 8.75" Mallory Steiner Webster Area 2027 31-03.75 34-00.50 6