MileSplit Staff May 08, 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 Wyoming 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 -13.66 Rico Ramirez Southeast High School 2028 58.46 44.80 2 -5.45 Karter Hlavacek Kelly Walsh High School 2026 50.67 45.22 3 -4.57 Crew Lancaster Star Valley High School 2028 48.48 43.91 4 -4.50 Gavin Hensley Cody High School 2028 53.12 48.62 5 -4.18 Kaiser Edwards Guernsey-Sunrise High School 2026 52.60 48.42 6 -4.09