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 Louisiana Boys 300m Hurdles marks compared to their season’s best performances from 2025. Most Improved - 300 Meter Hurdles Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 -9.16 Cordero Clark Castor 2028 52.16 43.00 2 -6.71 Christian Tinkler Silliman Institute 2027 48.16 41.45 3 -6.39 Gavyn Boucherie Maurepas 2026 54.85 48.46 4 -5.91 Peyton Hiltibidal Ponchatoula 2028 50.93 45.02 5 -5.72 Devynskii Jacobs Mamou 2026 54.60 48.87 6 -5.70 Sam Noveh Lakeshore 2028 54...