300 Meter Hurdles (86 Qualifiers)
| RANK | TIME | ATHLETE/TEAM | GRADE | MEET DATE PLACE |
|---|---|---|---|---|
| 1 | 36.98 | Fort Bend Marshall | 2022 | |
| 2 | 37.08 | Richmond George Ranch | 2021 | |
| 3 | 37.18 | Mesquite Poteet | 2022 | |
| 4 | 37.21 | Atascocita | 2021 | TSU Relays 1st |
| 5 | 37.25 | San Antonio Health Careers | 2021 | |
| 6 | 37.55 | Summer Creek | 2023 | TSU Relays 2nd |
| 7 | 37.63 | Mesquite | 2022 | |
| 8 | 37.89 | McKinney North | 2022 | |
| 9 | 37.96 | Killeen Harker Heights | 2021 | |
| 10 | 38.15 | Round Rock McNeil | 2023 | |
| 11 | 38.27 | Crowley | 2021 | UIL 5A - District 8 1st P |
| 12 | 38.36 | Amarillo | 2021 | |
| 13 | 38.40 | Cypress Woods | 2022 | |
| 14 | 38.41 | Dripping Springs | 2022 | |
| 15 | 38.45 | Killeen Shoemaker | 2022 | |
| 16 | 38.46 | Rosenberg Lamar Consolidated | 2022 | District 24 - 5A 2nd |
| 16 | 38.46 | Belton | 2022 | |
| 18 | 38.48 | Lewisville | 2021 | |
| 19 | 38.54 | Laredo United | 2021 | |
| 20 | 38.55 | El Paso Franklin | 2021 | UIL 6A - District 1 1st P |
| 21 | 38.59 | Mansfield Lake Ridge | 2021 | |
| 22 | 38.65 | Fort Bend Marshall | 2023 | |
| 23 | 38.69 | DeSoto | 2022 | |
| 24 | 38.72 | Northwest Nelson | 2021 | |
| 25 | 38.74 | Wimberley | 2021 | |
| 26 | 38.79 | Conroe Oak Ridge | 2021 | UIL 6A - District 13 1st P |
| 26 | 38.79 | Summer Creek | 2022 | District 21-6A 2nd P |
| 26 | 38.79 | Fort Bend Clements | 2021 | |
| 29 | 38.80 | Fort Bend Marshall | 2023 | |
| 30 | 38.83 | Keller | 2022 | |
| 31 | 38.85 | Mansfield High | 2021 | |
| 32 | 38.86 | Lewisville Marcus | 2022 | |
| 33 | 38.88 | Conroe High | 2021 | UIL 6A - District 13 2nd P |
| 34 | 38.92 | Alief Elsik | 2021 | |
| 35 | 38.95 | The Woodlands | 2021 | |
| 36 | 38.96 | Summer Creek | 2021 | |
| 37 | 38.98 | Plano East | 2021 | |
| 38 | 38.99 | The Woodlands College Park | 2022 | |
| 39 | 39.01 | Austin Westlake | 2022 | |
| 40 | 39.03 | San Antonio Johnson | 0 | |
| 40 | 39.03 | Boerne Champion | 2023 | |
| 42 | 39.04 | Round Rock | 2021 | |
| 43 | 39.05 | Bandera | 2022 | |
| 43 | 39.05 | Cedar Park | 2022 | |
| 45 | 39.08 | Del Valle | 2023 | |
| 46 | 39.13 | Celina | 2022 | |
| 47 | 39.14 | Jarrell | 2021 | |
| 47 | 39.14 | Dripping Springs | 2021 | |
| 49 | 39.18 | Katy Tompkins | 2021 | |
| 50 | 39.20 | Weatherford | 2022 | |
| 51 | 39.21 | New Waverly | 2021 | |
| 52 | 39.22 | El Paso Chapin | 2021 | |
| 52 | 39.22 | St Marks | 2022 | |
| 54 | 39.24 | Richmond George Ranch | 2022 | Tompkins Classic 1st |
| 55 | 39.25 | Dallas Jesuit | 2022 | |
| 56 | 39.28 | Texas City | 2023 | |
| 57 | 39.33 | Cypress Creek | 2021 | |
| 57 | 39.33 | Dallas Lincoln | 2022 | |
| 57 | 39.33 | Boerne Champion | 2022 | |
| 60 | 39.34 | Pflugerville Weiss High School | 0 | UIL 17-18 5A 1st |
| 60 | 39.34 | Killeen Shoemaker | 2021 | |
| 62 | 39.37 | Houston Lamar | 0 | |
| 63 | 39.38 | Klein Cain | 2022 | |
| 64 | 39.43 | Cypress Ranch | 2021 | Cy Ranch Relays 3rd |
| 64 | 39.43 | Katy Tompkins | 2024 | |
| 66 | 39.45 | Cypress Lakes | 2023 | |
| 67 | 39.51 | Corpus Christi Moody | 2022 | |
| 67 | 39.51 | Crosby | 2021 | |
| 69 | 39.53 | Langham Creek | 2023 | |
| 69 | 39.53 | Richmond George Ranch | 2023 | |
| 71 | 39.54 | Panhandle | 2021 | |
| 72 | 39.55 | Conroe High | 2021 | |
| 73 | 39.56 | Fort Bend Ridge Point | 2024 | |
| 74 | 39.57 | Kilgore | 0 | |
| 75 | 39.61 | Northwest High School | 2023 | |
| 76 | 39.62 | Jersey Village | 2022 | |
| 76 | 39.62 | McKinney North | 2021 | |
| 78 | 39.63 | Midlothian Heritage High School | 2021 | |
| 79 | 39.64 | Denton Braswell | 2023 | |
| 79 | 39.64 | Rockwall | 2022 | |
| 81 | 39.67 | Houston Bellaire | 2021 | |
| 82 | 39.68 | Atascocita | 2022 | |
| 83 | 39.71 | Leander High | 2022 | |
| 84 | 39.75 | Spring | 2023 | |
| 84 | 39.75 | Frisco Wakeland | 2024 | |
| 86 | 39.76 | New Home | 2021 | |
| 86 | 39.76 | Waxahachie Life | 2022 |