| Event | Rank | Mark | By | Meet |
| G-400 | 1 | 55.86 | Dendy, Maiya (2015) (Padua, DE) | DE D1 State Meet(DE), 2015-05-16(#1) |
| | | National Elites above. State Elites below | | |
| G-400 | 2 | 56.48 | Lampkin, Daija (2017) (Middletown, DE) | DE D1 State Meet(DE), 2015-05-16(#2) |
| G-400 | 3 | 56.81 | Smith, Naiya (2017) (Sussex Central, DE) | DE D1 State Meet(DE), 2015-05-16(#3) |
| G-400 | 4 | 58.41 | Lust, Amber (2015) (Polytech, DE) | Nike Henderson Invitational(PA), 2015-05-01(#3) |
| G-400 | 5 | 58.45 | Amponsah, Bema (2015) (Alexis I. Dupont, DE) | DE D1 State Meet(DE), 2015-05-16(#4) |
| G-400 | 6 | 58.59 | Armor, Alyssa (2018) (William Penn, DE) | New Castle County Championships(DE), 2015-05-09(#2) |
| G-400 | 7 | 58.70 | Harris, Nicole (2018) (Delaware Military Academy, DE) | USATF Junior Olympics National Championships 17-18(FL), 2015-08-02(#33) |
| G-400 | 8 | 58.78 | Mobley, Isabel (2016) (Thomas Mckean, DE) | DE D2 State Meet(DE), 2015-05-16(#1) |
| G-400 | 9 | 58.84 | Woods, Briyana (2017) (Mount Pleasant, DE) | New Castle County Championships(DE), 2015-05-09(#3) |
| G-400 | 10 | 59.43 | Roberson, Halimah (2017) (Newark, DE) | New Castle County Championships(DE), 2015-05-09(#4) |
| G-400 | 11 | 59.49 | Hosey, Katie (2016) (Ursuline, DE) | DE D2 State Meet(DE), 2015-05-16(#2) |
| G-400 | 12 | 59.59 | Buchanan, Jameela (2016) (Smyrna, DE) | AAU JO Region 2 Qualifier(NJ), 2015-06-28(#3) |
| G-400 | 13 | 59.83 | Ragin, Crystal (2016) (Concord, DE) | New Castle County Championships(DE), 2015-05-09(#5) |
| G-400 | 14 | 59.84 | Pankow, Savannah (2017) (Tatnall, DE) | DE D2 State Meet(DE), 2015-05-16(#3) |
| G-400 | 15 | 59.94 | Jones, Kyla (2018) (Delcastle Technical, DE) | DE D1 State Meet(DE), 2015-05-16(#6) |
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| | | See more performances for G-400 | | |
