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 Illinois Boys 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 -146:58.88 Ryan Larrivee Grayslake (North) 2026 149:10.00 2:11.12 2 -1:01.53 Nicholas Parker Sparta 2026 3:30.70 2:29.17 3 -45.16 Carlos Alonso Chicago (Horizon/McKinley) 2027 4:23.01 3:37.85 4 -41.29 Quinlan Taylor Monmouth (United) 2027 3:25.64 2:44.35 5 -39.92 Ethan Angulo Oak Forest 2027 3:10.49 2:30.57 6 -38.99 Allesandro Aban ...