MileSplit Staff Mar 27, 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 Tennessee Girls 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 -1:56.90 Mya Shelton Dyersburg High School 2026 10:00.40 8:03.49 2 -1:19.04 Hailey Markham Smith County High School 2028 8:21.03 7:01.99 3 -1:06.01 Ella Harrison Towering Oaks Christian School 2028 6:59.66 5:53.64 4 -57.86 Kristen Moor Christian Academy of Knoxville 2028 8:18.20 7:20.34 4 -57.86 Diana Francisco Felipe Howard School of Academics & Tech. 2027 9:18.36 ...