Most Improved Tennessee Boys 400m Marks Compared to 2025

MileSplit Staff

This content requires a MileSplit Pro plan.
Join Now and select any plan for instant access!

MileSplit Pro
Join Now

Improvement Rankings: Top Tennessee 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 -18.24 2026 1:16.44 58.20
2 -17.17 2027 1:11.02 53.85
3 -13.95 2028 1:08.49 54.54
4 -13.78 2028 1:18.87 1:05.09
5 -13.55 2031 1:17.99 1:04.43
6 -13.3...