| Event | Rank | Mark | By | Meet |
| G-400 | 1 | 54.70 | Smith, Maygen (2015) (Clear Brook, TX) (US#55) | TX 6A Region 3 Houston(TX), 2015-05-02(#1) |
| G-400 | 2 | 54.71 | Ivy, Amber (2016) (Cypress Creek, TX) (US#57) | TX 6A Region 3 Houston(TX), 2015-05-02(#2) |
| G-400 | 3 | 55.09 | Waller, Amberlyn (2015) (Jersey Village, TX) (US#81) | TX 6A Area 17-18 Cypress(TX), 2015-04-23(#2) |
| G-400 | 4 | 55.80 | Aaron, Destiny (2015) (Hightower, TX) | TX 6A District 23 Alief(TX), 2015-04-17(#1) |
| G-400 | 5 | 55.96 | Mack, Ariah (2017) (Cypress Springs, TX) | TX 6A District 17 Cypress(TX), 2015-04-15(#2) |
| | | National Elites above. State Elites below | | |
| G-400 | 6 | 56.21 | Keith, Nikesha (2016) (Cypress Springs, TX) | Rice Victor Lopez Classic(TX), 2015-04-04(#3) |
| G-400 | 7 | 56.25 | Baynes, Lacarol (2015) (Cypress Lakes, TX) | Rice Victor Lopez Classic(TX), 2015-04-04(#1) |
| G-400 | 8 | 56.47 | Crouch, Taylor (2017) (North Shore, TX) | TX 6A Area 21-22 North Shore(TX), 2015-04-23(#1) |
| G-400 | 9 | 56.49 | Brigance, LaGae (2015) (Hightower, TX) | Rice All-Comers 5-21(TX), 2015-05-21(#2) |
| G-400 | 10 | 56.68 | Kimble, Paige (2017) (Dawson, TX) | TX 6A Region 3 Houston(TX), 2015-05-02(#6) |
| G-400 | 10 | 56.68 | Kimball, Paige (2017) (Dawson, TX) | TX 6A Region 3 Houston(TX), 2015-05-02(#6) |
| G-400 | 12 | 56.72 | Hurst, Taj Dreana (2015) (Morton Ranch, TX) | Alief T.H.E. Relays(TX), 2015-04-02(#2) |
| G-400 | 13 | 56.89 | Moore, Shirmalyn (2018) (Sterling, TX) | TX 6A Area 21-22 North Shore(TX), 2015-04-23(#2) |
| G-400 | 14 | 56.99 | Rose, Tyler (2017) (Kempner, TX) | USATF JO Region 12 Qualifier(TX), 2015-07-11(#3) |
| G-400 | 15 | 57.17 | Wimbley, Sasha (2018) (North Shore, TX) | TAAF Games of Texas(TX), 2015-08-02(#1) |
| G-400 | 16 | 57.18 | Lomax, Brooke (2018) (Katy, TX) | TX 6A District 19 Cinco Ranch(TX), 2015-04-17(#1) |
| G-400 | 17 | 57.43 | Gandy, Sydney (2016) (Seven Lakes, TX) | TX 6A Area 19-20 Houston(TX), 2015-04-23(#2) |
| G-400 | 18 | 57.58 | Thomas, Brandy (2016) (Lamar, TX) | TX 6A District 20 Houston(TX), 2015-04-18(#1) |
| G-400 | 19 | 57.72 | Cooks, Amira (2017) (Cinco Ranch, TX) | TX 6A Area 19-20 Houston(TX), 2015-04-23(#4) |
| G-400 | 20 | 57.74 | Stewart, Morgan (2017) (Jersey Village, TX) | Humble Sam Mosely Relays(TX), 2015-02-28(#1) |
| G-400 | 21 | 57.80 | Cresser, Creshaun (2018) (Jersey Village, TX) | College Park Invitational(TX), 2015-03-28(#3) |
| G-400 | 22 | 58.04 | Adams, Ariele (2017) (Taylor, TX) | Track Houston Championship(TX), 2015-05-30(#1) |
| G-400 | 23 | 58.21 | Fuller, Lornell (2018) (Brazoswood, TX) | TX 4A Region 4 Kingsville(TX), 2015-05-02(#2) |
| G-400 | 24 | 58.24 | Waller, Kierra (2015) (Clear Lake, TX) | TX 6A District 24 Clear Springs(TX), 2015-04-16(#2) |
| G-400 | 25 | 58.38 | Singleton, Camille (2017) (Dobie, TX) | AAU JO District Gulf(TX), 2015-06-13(#2) |
| G-400 | 26 | 58.44 | Mills, Shoncraya (2015) (Aldine, TX) | TX 6A District 18 Houston(TX), 2015-04-16(#1) |
| G-400 | 27 | 58.50 | Hendrix, Kalia (2016) (Clear Brook, TX) | Dawson Eagle Invite(TX), 2015-03-18(#4) |
| G-400 | 28 | 58.53 | Blanks, Evette (2017) (Hightower, TX) | Texas Southern Relays(TX), 2015-03-21(#12) |
| G-400 | 29 | 58.63 | Smith, Jyria (Hightower, TX) | Walter Heintschel Relays(TX), 2015-02-28(#2) |
| G-400 | 30 | 58.68 | Raspberry, Makenli (2018) (Bellaire, TX) | Texas Southern Relays(TX), 2015-03-21(#13) |
| G-400 | 31 | 58.73 | Abrams, Breanna (2015) (Fort Bend Austin, TX) | Rice All-Comers 5-28(TX), 2015-05-28(#3) |
| G-400 | 32 | 58.86 | Jenkins, Jean (2017) (Cypress Falls, TX) | AAU JO District Gulf(TX), 2015-06-13(#5) |
| G-400 | 33 | 58.87 | Brown, Omri (2015) (Katy, TX) | TX 6A District 19 Cinco Ranch(TX), 2015-04-17(#5) |
| G-400 | 34 | 58.88 | Roberson, Takyera (2016) (Lamar, TX) | Strake Jesuit Crusader Relays(TX), 2015-02-28(#1) |
| G-400 | 35 | 58.89 | Carney, Isaly (2015) (Clear Creek, TX) | Baytown Rockhold Relays(TX), 2015-03-27(#1) |
| G-400 | 35 | 58.89 | Hamilton, Destiny (2017) (Lamar, TX) | TX 6A District 20 Houston(TX), 2015-04-18(#3) |
| G-400 | 37 | 58.94 | Mitchell, Jada (2016) (Lamar, TX) | TX 6A District 20 Houston(TX), 2015-04-18(#4) |
| G-400 | 38 | 58.95 | Williams, Hailey (2015) (Mayde Creek, TX) | AAU JO District Gulf(TX), 2015-06-13(#7) |
| G-400 | 39 | 59.06 | Cossey, Haley (2015) (Travis, TX) | TX 6A Area 23-24 Ft Bend(TX), 2015-04-24(#4) |
| G-400 | 40 | 59.10 | Hendrickson, Valencia (2016) (Cy-Fair, TX) | AAU JO Region 17 Qualifier(TX), 2015-07-04(#4) |
| G-400 | 41 | 59.17 | Finley, Taylor (2018) (Hightower, TX) | TX 6A District 23 Alief(TX), 2015-04-17(#4) |
| G-400 | 42 | 59.18 | Hollier, Kennedae (2016) (Cypress Ridge, TX) | Texas Southern Relays(TX), 2015-03-21(#16) |
| G-400 | 43 | 59.19 | Smith, Daphane (2015) (Aldine Davis, TX) | Rice Victor Lopez Classic(TX), 2015-04-04(#9) |
| G-400 | 44 | 59.33 | Bilal, Tamiyah (2015) (Eisenhower, TX) | TX 6A District 18 Houston(TX), 2015-04-16(#2) |
| G-400 | 45 | 59.34 | Young, Ashia (2016) (Nimitz, TX) | TX 6A District 18 Houston(TX), 2015-04-16(#3) |
| G-400 | 46 | 59.35 | Hall, Rachel (2018) (Cypress Springs, TX) | Track Houston Championship(TX), 2015-05-30(#2) |
| G-400 | 47 | 59.53 | Satterfield, Keely (2016) (Cypress Ridge, TX) | TX 6A District 17 Cypress(TX), 2015-04-15(#6) |
| G-400 | 48 | 59.59 | Lane, Tesha (2017) (Aldine Davis, TX) | TX 6A Area 17-18 Cypress(TX), 2015-04-23(#5) |
| G-400 | 49 | 59.70 | Wayne, Victoria (2016) (Cinco Ranch, TX) | Track Houston Championship(TX), 2015-05-30(#11) |
| G-400 | 49 | 59.70 | Levi, Kyara (2016) (Cypress Lakes, TX) | Track Houston Championship(TX), 2015-05-30(#10) |
| G-400 | 51 | 59.74 | Mitchell, Jasmin (2017) (Tompkins, TX) | TX 6A District 19 Cinco Ranch(TX), 2015-04-17(#6) |
| G-400 | 52 | 59.81 | Carswell, Aliyah (2018) (Langham Creek, TX) | Great Southwest Classic(NM), 2015-06-06(#29) |
| G-400 | 53 | 59.85 | Johnson, Arjai (Langham Creek, TX) | USATF JO Region 12 Qualifier(TX), 2015-07-11(#10) |
| G-400 | 54 | 59.89 | Jordan, Kelsey (2015) (Cypress Springs, TX) | TX 6A District 17 Cypress(TX), 2015-04-15(#5) |
| G-400 | 54 | 59.89 | Udobong, Faith (2016) (Bellaire, TX) | TX 6A District 20 Houston(TX), 2015-04-18(#5) |
| G-400 | 56 | 59.94 | Cameron, Javlyn (2017) (Mayde Creek, TX) | Rice All-Comers 6-11(TX), 2015-06-11(#2) |
| G-400 | 57 | 59.95 | Berry, Teshaye (2016) (North Shore, TX) | TAAF Games of Texas(TX), 2015-08-02(#8) |
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