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 New Mexico 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 -29.69 Randall Koaher Hot Springs High School 2028 1:43.47 1:13.77 2 -20.10 Nikolai Najar Reserve High School 2030 1:27.65 1:07.55 3 -19.35 Jayrando Foster Shiprock Northwest 2026 1:24.90 1:05.55 4 -17.24 Elijah Clements Roswell High School 2027 1:12.25 55.01 5 -15.28 Daveon Gonzales Clayton High School 2028 1:11.60 56.32 6 -13.91 ...