MileSplit Staff May 01, 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 Pennsylvania Boys 400m marks compared to their season’s best performances from 2025. Most Improved - 400 Meter Dash Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 -29.95 Aidan Akers Harry S Truman 2026 1:29.07 59.12 2 -20.30 Isaac Tran Marple Newtown 2026 1:14.42 54.12 3 -20.18 Owen Wolfe Redbank Valley 09 2026 1:16.33 56.15 4 -20.14 Gavin Sasville-Frey Smethport Area 2030 1:27.40 1:07.26 5 -19.53 Patrick Johnson Port Allegany 2030 1:31.10 1:11.57 6 -19.36 Jayden Grace Perry Trad...