MileSplit Staff Apr 03, 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 Mississippi Boys High Jump marks compared to their season’s best performances from 2025. Most Improved - High Jump Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 +1' 0.00" Johnathan Lindsey Madison Middle School 2030 4-08.00 5-08.00 1 +1' 0.00" Jaiden Thomas Vicksburg High School 2028 4-08.00 5-08.00 3 +10.00" Daylen Davidson Richland High School 2028 5-00.00 5-10.00 4 +8.00" Leyton Phillips East Rankin Academy 2027 5-04.00 6-00.00 4 +8.00" Kobe Hendrix Starkville High School 2027 5-02.00 5-10.00 4 +8...