MileSplit Staff Apr 10, 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 Arizona Boys 1600m marks compared to their season’s best performances from 2025. Most Improved - 1600 Meter Run Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 -1:18.97 Ivan Bengson Mingus Union High School 2028 7:17.84 5:58.87 2 -1:16.10 Teddy Guerrero Agua Fria High School 2028 6:46.67 5:30.57 3 -1:15.87 Osvaldo Roman Martinez Estrella Foothills High School 2028 6:30.00 5:14.13 4 -1:13.98 Caleb Rabago Poston Butte 2028 7:01.68 5:47.70 5 -1:11.17 Benjamin Mata Maricopa High School 2028 7:02.07 5:50.90 6 ...