MileSplit Staff Apr 17, 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 Michigan Boys Long Jump marks compared to their season’s best performances from 2025. Most Improved - Long Jump Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 +17' 6.00" Gavin Smith Rochester Adams 2027 1-05.00 18-11.00 2 +17' 4.00" Martezz Davis Redford Thurston 2028 1-05.00 18-09.00 3 +17' 3.75" Hayden McCormack-Reamer Farmington 2027 1-06.00 18-09.75 4 +17' 0.00" Luke Bourdon Bay City John Glenn 2027 1-05.00 18-05.00 5 +16' 11.00" Krystian Kubicz Howell 2027 1-05.00 18-04.00 6 +16' 6.00" ...