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 Utah Girls 100m marks compared to their season’s best performances from 2025. Most Improved - 100 Meter Dash Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 -2.54 Claire Vaccaro Grand County 2028 40.10 37.56 2 -2.25 Shea Joos Copper Hills 2028 16.41 14.16 3 -1.75 Braeslee Williams West Jordan 2028 16.35 14.60 4 -1.52 Carolina Black Brighton 2027 15.11 13.59 5 -1.43 Greta Jensen Jordan 2026 15.63 14.20 6 -1.30 Azaria Cornwall Grossman Copper Hills 2028 15.73 ...