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 New Jersey Boys Javelin marks compared to their season’s best performances from 2025. Most Improved - Javelin Throw Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 +50' 11.00" Colin Dowd Shawnee HS 2026 72-01.00 123-00.00 2 +49' 4.00" James Elmera Union HS 2028 45-01.00 94-05.00 3 +38' 1.00" Mohammed Sheriff Hamilton East - Steinert HS 2028 95-10.00 133-11.00 4 +36' 7.00" Ronan Ireland Cherry Hill East HS 2028 91-05.00 128-00.00 4 +36' 7.00" Marco Diamantopoulos Southern Regional HS 2027 81-11.00 118-06.00 6