MileSplit Staff May 29, 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 +6' 3.00" Abigail Lee Britton - Hecla 2026 29-05.75 35-08.75 2 +5' 2.25" Adelynn Timmermans Lennox High School 2026 26-08.75 31-11.00 3 +4' 4.00" Rhegan Sheppard Flandreau High School 2030 30-00.75 34-04.75 4 +3' 7.50" Arianna Langbehn Wolsey Wessington High School 2028 25-09.50 29-05.00 5 +3' 6.75" Hser Wah Huron High School 2028 25-09.50 29-04.25