| Event | Rank | Mark | By | Meet |
| G-300H | 1 | 44.04 | Alabi, Yinka (2015) (Milford Mill Academy, MD) | MD 3A State Meet(MD), 2015-05-23(#1) |
| G-300H | 2 | 44.12 | Pyles, Alexus (2016) (Clarksburg, MD) | Montgomery County Championships(MD), 2015-05-06(#1) |
| | | National Elites above. State Elites below | | |
| G-300H | 3 | 44.94 | Wagner, Reilly (2015) (South River, MD) | MD 4A State Meet(MD), 2015-05-23(#2) |
| G-300H | 4 | 45.05 | Gorman, Kaliyah (2015) (Huntingtown, MD) | MD 3A State Meet(MD), 2015-05-23(#2) |
| G-300H | 5 | 45.42 | Robinson, Kita (2015) (Dulaney, MD) | Katie Jenkins Invitational(MD), 2015-05-02(#1) |
| G-300H | 6 | 45.46 | Jackson, Jada (2015) (Thomas Stone, MD) | MD 3A State Meet(MD), 2015-05-23(#3) |
| G-300H | 7 | 45.51 | Stevenson, Deja (2016) (Baltimore Poly, MD) | MD 3A East Regional(MD), 2015-05-16(#1) |
| G-300H | 8 | 45.57 | Adebayo, Yusrah (2015) (Paint Branch, MD) | MD 4A State Meet(MD), 2015-05-23(#3) |
| G-300H | 9 | 45.68 | Dorsu, Sisan (2015) (Bethesda-Chevy Chase, MD) | MD 4A West Regional(MD), 2015-05-14(#2) |
| G-300H | 10 | 45.74 | McCracken, Alaina (2016) (Oakdale, MD) | MD 2A West Regional(MD), 2015-05-16(#1) |
| G-300H | 11 | 45.84 | Driver, Holly (2016) (John Carroll, MD) | MIAA/IAAM Championships(MD), 2015-05-05(#1) |
| G-300H | 12 | 45.88 | Russell, Masai (2018) (Bullis, MD) | ISL / MAC Championships(MD), 2015-05-08(#1) |
| G-300H | 13 | 45.90 | Williams, Sydney (2017) (Henry E. Lackey, MD) | Waldorf Classic(MD), 2015-04-11(#1) |
| G-300H | 14 | 46.03 | Penda, Helnsarah (2016) (Seneca Valley, MD) | Montgomery County Championships(MD), 2015-05-06(#2) |
| G-300H | 15 | 46.06 | Summerville, Renee (2015) (Digital Harbor, MD) | Pikesville Track Classic(MD), 2015-04-11(#2) |
| G-300H | 16 | 46.12 | Anoma, Amiya (2018) (Randallstown, MD) | MD 2A State Meet(MD), 2015-05-23(#1) |
| G-300H | 17 | 46.15 | Smith, Denver (2015) (Frederick Douglass, MD) | MD 2A South Regional(MD), 2015-05-16(#1) |
| G-300H | 18 | 46.23 | Guillen, Bethany (2015) (Century, MD) | MD 2A State Meet(MD), 2015-05-23(#2) |
| G-300H | 19 | 46.29 | Johnson, Ayanna (2017) (Riverdale Baptist, MD) | Victor Cahoon Classic(VA), 2015-05-09(#2) |
| G-300H | 20 | 46.40 | Ubah, Cynthia (2016) (Duval, MD) | MD 4A South Regional(MD), 2015-05-16(#1) |
| G-300H | 21 | 46.51 | Hicks, Dyonne (2016) (Charles Herbert Flowers, MD) | MD 4A South Regional(MD), 2015-05-16(#2) |
| G-300H | 22 | 46.54 | Hackett, Nadia (2017) (Baltimore Poly, MD) | MD 3A East Regional(MD), 2015-05-16(#3) |
| G-300H | 23 | 46.56 | West, Sydney (2015) (Walter Johnson, MD) | Montgomery County Championships(MD), 2015-05-06(#4) |
| G-300H | 24 | 46.60 | Hamilton, Kayla (2016) (Mount de Sales, MD) | Oakland Mills Scorpion Classic(MD), 2015-04-17(#1) |
| G-300H | 25 | 46.64 | Gudger, Erianna (2016) (Huntingtown, MD) | MD 3A South Regional(MD), 2015-05-16(#4) |
| G-300H | 26 | 46.78 | Barrows, Lisa-Anne (2015) (Holton Arms, MD) | Draper Invitational(VA), 2015-05-01(#1) |
| G-300H | 27 | 46.89 | Colbert, Tylar (2018) (Digital Harbor, MD) | MD 3A East Regional(MD), 2015-05-16(#4) |
| G-300H | 28 | 46.90 | Hall, Sarah (2017) (Middletown, MD) | MD 2A State Meet(MD), 2015-05-23(#4) |
| G-300H | 29 | 46.93 | Ridenour, Rachel (2015) (Mountain Ridge, MD) | MD 2A West Regional(MD), 2015-05-16(#3) |
| G-300H | 30 | 47.05 | Campbell, Elizabeth (2016) (South Carroll, MD) | MD 2A West Regional(MD), 2015-05-16(#5) |
| G-300H | 31 | 47.07 | Dawson, Kali (2015) (South River, MD) | MD 4A State Meet(MD), 2015-05-23(#6) |
| G-300H | 31 | 47.07 | Lee, Lucy (2018) (Winston Churchill, MD) | MD 4A West Regional(MD), 2015-05-14(#4) |
| G-300H | 33 | 47.13 | Revell, Daijona (2015) (Western Tech, MD) | MD 2A State Meet(MD), 2015-05-23(#5) |
| G-300H | 34 | 47.21 | Antkowiak-Tasson, Theresa (2015) (Loch Raven, MD) | MD 2A State Meet(MD), 2015-05-23(#6) |
| G-300H | 35 | 47.30 | Grimes, Taylor (2018) (Bishop Mcnamara, MD) | Victor Cahoon Classic(VA), 2015-05-09(#5) |
| G-300H | 36 | 47.33 | Lednum, Alyssa (2016) (La Plata, MD) | MD 3A South Regional(MD), 2015-05-16(#5) |
| G-300H | 36 | 47.33 | Convers, Allyson (2015) (Poolesville, MD) | MD 2A West Regional(MD), 2015-05-16(#6) |
| G-300H | 38 | 47.36 | Del, Mia (2015) (Damascus, MD) | MD 3A State Meet(MD), 2015-05-23(#7) |
| G-300H | 39 | 47.39 | Lewis, Lindsay (2017) (Bullis, MD) | ISL / MAC Championships(MD), 2015-05-08(#5) |
| G-300H | 40 | 47.40 | Shodiya, Elizabeth (2016) (Oxon Hill, MD) | Oxon Hill Clipper Classic(MD), 2015-04-18(#2) |
| G-300H | 40 | 47.40 | Fields, Summer (The Seton Keough, MD) | MIAA/IAAM Championships(MD), 2015-05-05(#4) |
| G-300H | 42 | 47.41 | Pyles, Brionne (2017) (Clarksburg, MD) | Montgomery County Championships(MD), 2015-05-06(#5) |
| G-300H | 43 | 47.42 | Pyles, Ciera (2018) (Clarksburg, MD) | Urbana Relays(MD), 2015-03-21(#2) |
| G-300H | 44 | 47.47 | Clarke-Kennedy, Eniyah (2017) (Frederick Douglass, MD) | MD 2A South Regional(MD), 2015-05-16(#2) |
| G-300H | 45 | 47.65 | Johnson, Malana (2017) (Elizabeth Seton, MD) | Victor Cahoon Classic(VA), 2015-05-09(#7) |
| G-300H | 45 | 47.65 | Trout, Shelby (2016) (Col. Zadok Magruder, MD) | MD 4A West Regional(MD), 2015-05-14(#5) |
| G-300H | 47 | 47.70 | Whitfield, Najah (Mercy, MD) | MIAA/IAAM Championships(MD), 2015-05-05(#6) |
| G-300H | 47 | 47.70 | Murtha, Riley (2018) (Marriotts Ridge, MD) | MD 2A State Meet(MD), 2015-05-23(#7) |
| G-300H | 49 | 47.78 | Jenkins, Rynaisha (2017) (South Hagerstown, MD) | Washington County Championships(MD), 2015-05-07(#1) |
| G-300H | 50 | 47.93 | Palmer, Mecalia (2015) (Rockville, MD) | MD 3A West Regional (MD), 2015-05-14(#1) |
| G-300H | 51 | 48.00 | Hudson, Eleanor (2016) (Towson Catholic, MD) | MD 3A North Regional(MD), 2015-05-16(#2) |
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