MileSplit Staff Mar 05, 2026 PRO See the rest of this article Access the complete article with MileSplit PRO. Subscribe to keep reading Already a subscriber? Log in. Ranking the top Girls 300m Hurdles performers in TX UIL 6A Region 1 this season. 300 Meter Hurdles Rank Time Athlete/Team Class Meet / Date 1 43.23 Morgan Olschewsky Plano 2028 Allen Eagle Relays Feb 20, 2026 2 44.07 Bailey Johnson Coppell 2028 Southlake Carroll Invitational Feb 26, 2026 3 44.39 Grace Chacchia Rock Hill 2026 Mansfield High School Invitational Feb 13, 2026 4 45.00 Blair Haverkamp Flower Mound 2026 The Colony Cougar Invitational FULL Feb 19, 2026 5 45.09 Eliora-Lynn Ndri Northwest 2027 Argyle Invitational ...