| Event | Rank | Mark | By | Meet |
| G-400 | 278 | 59.67 | Pinkney, Breona (2018) (Jefferson, TX) | USATF JO Border Assn(TX), 2015-06-27(#1) |
| G-400 | 279 | 59.68 | Washington, Shamya (2017) (Marshall, TX) | TX 5A District 15 Pine Tree(TX), 2015-04-16(#2) |
| G-400 | 280 | 59.70 | Akinniyi, Eni (2018) (Guyer, TX) | TAAF Games Region 4 Colony(TX), 2015-07-18(#5) |
| G-400 | 280 | 59.70 | Levi, Kyara (2016) (Cypress Lakes, TX) | Track Houston Championship(TX), 2015-05-30(#10) |
| G-400 | 280 | 59.70 | Wayne, Victoria (2016) (Cinco Ranch, TX) | Track Houston Championship(TX), 2015-05-30(#11) |
| G-400 | 283 | 59.71 | Orzabal, Gabbi (2015) (College Station, TX) | Oak Ridge Invite(TX), 2015-02-21(#3) |
| G-400 | 283 | 59.71 | Smith, Katherine (2017) (St John's, TX) | SPC Championships(TX), 2015-05-01(#4) |
| G-400 | 285 | 59.72 | Garcia, Kylee (2015) (Rider, TX) | TX 5A Region 1 Lubbock(TX), 2015-05-02(#5) |
| G-400 | 286 | 59.74 | Mitchell, Jasmin (2017) (Tompkins, TX) | TX 6A District 19 Cinco Ranch(TX), 2015-04-17(#6) |
| G-400 | 286 | 59.74 | Onyendi, Uzoa (2017) (Allen, TX) | TAAF Games Region 7 Mesquite(TX), 2015-07-18(#5) |
| G-400 | 286 | 59.74 | Busari, Mariam (2016) (Atascocita, TX) | TX 6A District 16 Humble(TX), 2015-04-16(#7) |
| G-400 | 286 | 59.74 | Jones, London (2016) (Dublin, TX) | TX 3A Region 1 Abilene(TX), 2015-05-02(#4) |
| G-400 | 290 | 59.75 | Griffin, Makalah (2016) (Midlothian, TX) | TX 6A District 8 Cedar Hill(TX), 2015-04-09(#7) |
| G-400 | 290 | 59.75 | Christopher, Ke'Airra (Whitehouse, TX) | TAAF Games of Texas(TX), 2015-08-02(#9) |
| G-400 | 292 | 59.76 | Lockhart, Ya'Mecca (2015) (Roosevelt, TX) | TX 4A District 11 Dallas(TX), 2015-04-16(#1) |
| G-400 | 292 | 59.76 | Mcknight, Kyndal (2017) (Marcus, TX) | TAAF Games Region 4 Colony(TX), 2015-07-18(#6) |
| G-400 | 294 | 59.78 | Bannister, Taylor (2017) (Ft Bend Christian, TX) | TX TAPPS 4A District 5 Houston(TX), 2015-04-23(#1) |
| G-400 | 295 | 59.79 | Mayberry, Kacie (2016) (St Dominic Savio, TX) | TX TAPPS 4A Region South(TX), 2015-05-01(#1) |
| G-400 | 296 | 59.81 | Pepper, Hannah (2018) (Conroe, TX) | TX 6A District 16 Humble(TX), 2015-04-16(#6) |
| G-400 | 296 | 59.81 | Isom, Sophie (2018) (Hockaday, TX) | SPC Championships(TX), 2015-05-01(#2) |
| G-400 | 296 | 59.81 | Carswell, Aliyah (2018) (Langham Creek, TX) | Great Southwest Classic(NM), 2015-06-06(#29) |
| G-400 | 296 | 59.81 | Edwards, G'Auna (2017) (Spring, TX) | Track Houston Championship(TX), 2015-05-30(#4) |
| G-400 | 300 | 59.82 | Gamble, Alyse (99) (Austin, TX) | AAU JO Region 19 Qualifier(TX), 2015-07-01(#5) |
| G-400 | 300 | 59.82 | Cunningham, Brianna (2017) (Bay City, TX) | TX 4A District 27 Sealy(TX), 2015-04-15(#2) |
| G-400 | 302 | 59.83 | Miles, Kandice (2016) (George Ranch, TX) | AAU JO District Gulf(TX), 2015-06-13(#9) |
| G-400 | 303 | 59.84 | Young, Akuira (2015) (Tomball Memorial, TX) | Tomball Memorial Wildcat Relays(TX), 2015-02-20(#1) |
| G-400 | 304 | 59.85 | Johnson, Arjai (Langham Creek, TX) | USATF JO Region 12 Qualifier(TX), 2015-07-11(#10) |
| G-400 | 305 | 59.86 | Jones, Elon'A (2018) (Plano, TX) | Plano West Invite(TX), 2015-03-26(#1) |
| G-400 | 305 | 59.86 | Bowen, Myah (99) (Unattached, TX) | AAU JO Region 18 Qualifier(TX), 2015-07-05(#7) |
| G-400 | 307 | 59.87 | Lentz, Abby (2016) (Rouse, TX) | TX 6A District 13 Rouse(TX), 2015-04-09(#6) |
| G-400 | 307 | 59.87 | Pyle, Madison (2015) (Dallas Episcopal, TX) | SPC Championships(TX), 2015-05-01(#3) |
| G-400 | 309 | 59.88 | Guillen, Ariel (2016) (W T White, TX) | TX 6A District 9 Dallas Jesuit(TX), 2015-04-16(#3) |
| G-400 | 310 | 59.89 | Dickson, Camille (Hays, TX) | Smithson Valley Ranger Relays(TX), 2015-03-07(#3) |
| G-400 | 310 | 59.89 | Jordan, Kelsey (2015) (Cypress Springs, TX) | TX 6A District 17 Cypress(TX), 2015-04-15(#5) |
| G-400 | 310 | 59.89 | Udobong, Faith (2016) (Bellaire, TX) | TX 6A District 20 Houston(TX), 2015-04-18(#5) |
| G-400 | 310 | 59.89 | Johnson, Shelby (2015) (Lincoln, TX) | TX 4A Region 2 Commerce(TX), 2015-05-02(#6) |
| G-400 | 314 | 59.91 | Martinez, Celia (2017) (Flour Bluff, TX) | TX 5A Area 29-30 Alice(TX), 2015-04-25(#3) |
| G-400 | 315 | 59.93 | Cantwell, Kamryn (2018) (Bowie, TX) | TX 3A Area 9-10 Jacksboro(TX), 2015-04-23(#1) |
| G-400 | 315 | 59.93 | Pulido, Ariana (2018) (Klein Collins, TX) | Track Houston Championship(TX), 2015-05-30(#5) |
| G-400 | 315 | 59.93 | Harris, Candyla (2017) (Elkins, TX) | AAU JO District Gulf(TX), 2015-06-13(#5) |
| G-400 | 318 | 59.94 | Paige, Savaun (2016) (Steele, TX) | AAU JO Region 19 Qualifier(TX), 2015-07-01(#7) |
| G-400 | 318 | 59.94 | Cameron, Javlyn (2017) (Mayde Creek, TX) | Rice All-Comers 6-11(TX), 2015-06-11(#2) |
| G-400 | 320 | 59.95 | Berry, Teshaye (2016) (North Shore, TX) | TAAF Games of Texas(TX), 2015-08-02(#8) |
| G-400 | 321 | 59.96 | Martinez, Erin (Lyford, TX) | TX 3A Region 4 Converse(TX), 2015-05-02(#5) |
| G-400 | 322 | 59.98 | Rivera, Genevie (2017) (Harlandale, TX) | TX 5A Region 4 San Antonio(TX), 2015-05-02(#7) |
| G-400 | 323 | 59.99 | Hooper, Paige (2015) (Monsignor Kelly, TX) | TX TAPPS 5A Region South(TX), 2015-05-01(#3) |
| G-400 | 323 | 59.99 | Alao, Tosin (2019) (Unattached, TX) | USATF JO Southwest Assn(TX), 2015-06-20(#13) |
| G-400 | 325 | 60.00 | Coleman, Breonica (2016) (Oakridge, TX) | Mark Collins Invitational(TX), 2015-03-27(#1) |
| G-400 | 326 | 1:00.00 | Brown, De'Ja (2016) (Pinkston, TX) | TX 4A District 11 Dallas(TX), 2015-04-16(#1) |
| G-400 | 326 | 1:00.00 | Young, Tamara (2018) (Pinkston, TX) | TX 4A District 11 Dallas(TX), 2015-04-16(#1) |
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