| Event | Rank | Mark | By | Meet |
| G-400 | 1 | 54.05 | Ellis, Brittny (2015) (Warren Township, IL) (US#22) | Brooks PR Invitational(WA), 2015-06-20(#2) |
| G-400 | 2 | 54.79 | Hudson, Mariya (2017) (Cahokia, IL) (US#63) | IL 2A Girls State Finals(IL), 2015-05-23(#1) |
| G-400 | 3 | 55.12 | Miller, Samara (2016) (Neuqua Valley, IL) (US#86) | Paul Wallace Classic (IL), 2015-01-01(#1) |
| G-400 | 4 | 55.18 | Mcclain, Amanda (2015) (Sullivan, IL) (US#96) | IL 1A Girls State Finals(IL), 2015-05-23(#1) |
| G-400 | 5 | 55.54 | Wilson, Ashleigh (2015) (Minooka Community, IL) | IL 3A Girls State Finals(IL), 2015-05-23(#2) |
| G-400 | 6 | 55.68 | Harris, Morgan (2016) (Oswego East, IL) | Paul Wallace Classic (IL), 2015-01-01(#2) |
| G-400 | 7 | 55.86 | Griggs, Kierra (2016) (Bloom Township, IL) | IL 3A Girls State Finals(IL), 2015-05-23(#3) |
| G-400 | 8 | 56.18 | Liz, Karina (2016) (Aurora Central Catholic, IL) | IL 2A Girls State Prelims(IL), 2015-05-22(#2) |
| | | National Elites above. State Elites below | | |
| G-400 | 9 | 56.59 | Stennis, Charlyncia (2016) (Bolingbrook, IL) | AAU JO Region 13 Qualifier(IL), 2015-07-05(#4) |
| G-400 | 10 | 56.66 | Welch, Kylie (2017) (Bloomington, IL) | USATF Youth National Championships 15-16(IL), 2015-07-05(#2) |
| G-400 | 11 | 56.73 | Bax, Deven (2015) (Lincoln-Way West, IL) | IL 2A Girls State Prelims(IL), 2015-05-22(#4) |
| G-400 | 12 | 56.92 | Ward, Whitney (2016) (Brooks College Prep Academy, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#3) |
| G-400 | 12 | 56.92 | Heinzer, Allie (2016) (Kaneland , IL) | IL 2A Girls State Prelims(IL), 2015-05-22(#3) |
| G-400 | 14 | 56.93 | Jones, Amber (2016) (Rich South, IL) | USATF Youth National Championships 17-18(IL), 2015-07-05(#2) |
| G-400 | 15 | 56.95 | Hargrave, Tashee (2016) (Neuqua Valley, IL) | USATF JO Region 7 Qualifier(IL), 2015-07-12(#3) |
| G-400 | 16 | 56.98 | Lewis, Dominique (2015) (Centennial, IL) | Bruce Ritter Invitational(IL), 2015-04-17(#1) |
| G-400 | 17 | 57.03 | Harris, Grace (Unattached, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#5) |
| G-400 | 18 | 57.19 | Rayford, Tamia (2017) (West Aurora, IL) | Upstate Eight Girls Conference Meet(IL), 2015-05-07(#2) |
| G-400 | 19 | 57.20 | Basala, Delaney (2016) (Grant Community, IL) | Barrington Girls Invitational(IL), 2015-04-17(#2) |
| G-400 | 20 | 57.33 | Mundekis, Cassie (2015) (Midwest Central, IL) | IL 1A Girls State Finals(IL), 2015-05-23(#2) |
| G-400 | 21 | 57.34 | Smith, Kameesha (2017) (Thornwood, IL) | IL 3A Girls State Finals(IL), 2015-05-23(#6) |
| G-400 | 22 | 57.47 | Davis, Imani (2016) (Lane Technical, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#7) |
| G-400 | 23 | 57.50 | Desrosiers, Gabrielle (2016) (North Lawndale Charter, IL) | DuPage Track Invitational(IL), 2015-07-18(#2) |
| G-400 | 24 | 57.51 | Cohn, Hannah (2016) (St. Ignatius, IL) | IL 3A St. Ignatius Girls Sectional(IL), 2015-05-14(#1) |
| G-400 | 25 | 57.55 | Hall, Imani (2016) (Danville, IL) | USATF Youth National Championships 17-18(IL), 2015-07-05(#4) |
| G-400 | 26 | 57.60 | Ignoffo, Foster (2016) (Geneva, IL) | Upstate Eight Girls Conference Meet(IL), 2015-05-07(#3) |
| G-400 | 27 | 57.72 | Kereta, Amanda (2015) (Henry-Senachwine, IL) | IL 1A Girls State Finals(IL), 2015-05-23(#3) |
| G-400 | 28 | 57.74 | Hackbarth, Michaela (2016) (Downers Grove South, IL) | IL 3A Downers Grove North Girls Sectional(IL), 2015-05-14(#2) |
| G-400 | 29 | 57.78 | Mcnamee, Nijia (2015) (Belleville West, IL) | IL 3A O'Fallon Girls Sectional(IL), 2015-05-15(#1) |
| G-400 | 30 | 57.86 | Coy, Addison (2017) (Barrington, IL) | Mid Suburban League Girls Championships(IL), 2015-05-08(#1) |
| G-400 | 31 | 57.94 | Beeman, Alison (2016) (Wauconda Comm, IL) | IL 2A Girls State Finals(IL), 2015-05-23(#5) |
| G-400 | 32 | 57.98 | Crudup, Shamarra (2016) (Westinghouse Career Academy, IL) | IL 3A Girls State Prelims(IL), 2015-05-22(#10) |
| G-400 | 32 | 57.98 | Keyes, Likkaya (2018) (Morgan Park, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#2) |
| G-400 | 34 | 58.02 | Smyles, Jasmine (2016) (Prosser Career Academy, IL) | IL 3A Girls State Prelims(IL), 2015-05-22(#11) |
| G-400 | 35 | 58.16 | Wallace, Kyndall (2016) (Lincoln-Way East, IL) | SWSC-Blue Girls Conference Meet(IL), 2015-05-07(#2) |
| G-400 | 36 | 58.18 | Stonewall, Chante (2016) (Normal University, IL) | Bloomington/Normal Intercity Classic(IL), 2015-04-28(#1) |
| G-400 | 37 | 58.24 | Brown, Daijah (2018) (Plainfield South, IL) | IL 3A Naperville North Girls Sectional(IL), 2015-05-14(#3) |
| G-400 | 38 | 58.26 | Stricker, Sophie (2016) (Harvard, IL) | IL 2A Girls State Finals(IL), 2015-05-23(#6) |
| G-400 | 39 | 58.29 | Adducci, Morgan (2015) (Glenbrook North, IL) | IL 3A Girls State Prelims(IL), 2015-05-22(#12) |
| G-400 | 40 | 58.36 | Ayoola, Ololade (2017) (Lincoln-Way East, IL) | Glenbard South Lady Raider Invitational(IL), 2015-04-17(#1) |
| G-400 | 41 | 58.38 | Keith, Sophie (2016) (Pinckneyville Comm, IL) | IL 1A Nashville Girls Sectional(IL), 2015-05-15(#1) |
| G-400 | 42 | 58.50 | Cobert, Rachel (2016) (Erie-Prophetstown, IL) | IL 2A Girls State Finals(IL), 2015-05-23(#7) |
| G-400 | 43 | 58.52 | Althoff, Nicky (2016) (Hononegah, IL) | WWS Girls Tiger Invitational(IL), 2015-05-01(#3) |
| G-400 | 44 | 58.54 | Golliday, Charde (2016) (Mount Vernon, IL) | IL 2A Girls State Prelims(IL), 2015-05-22(#7) |
| G-400 | 45 | 58.56 | Henry, Alexis (2016) (Springfield Southeast, IL) | Bloomington Lady Raider Invitational, 2015-04-17(#1) |
| G-400 | 46 | 58.58 | Holland, Tessa (2015) (Fieldcrest, IL) | IL 1A Girls State Finals(IL), 2015-05-23(#5) |
| G-400 | 47 | 58.65 | Prear, Kelsie (2015) (Morgan Park, IL) | WWS Girls Tiger Invitational(IL), 2015-05-01(#4) |
| G-400 | 48 | 58.72 | Wesley, Destiny (2015) (Thornridge, IL) | IL 2A Kankakee Girls Sectional(IL), 2015-05-14(#2) |
| G-400 | 49 | 58.75 | Johnson, Avryl (2018) (Libertyville, IL) | North Suburban Girls Conference Meet(IL), 2015-05-07(#3) |
| G-400 | 50 | 58.79 | Long, Savannah (2016) (DeKalb, IL) | USATF Youth National Championships 17-18(IL), 2015-07-05(#8) |
| G-400 | 51 | 58.83 | McClinton, Kyanna (2018) (St. Charles East, IL) | Upstate Eight Girls Conference Meet(IL), 2015-05-07(#5) |
| G-400 | 51 | 58.83 | Reed, Megan (2016) (Cambridge, IL) | IL 1A Girls State Finals(IL), 2015-05-23(#6) |
| G-400 | 53 | 58.84 | Iginla, Basirat (2015) (Palatine, IL) | Palatine Relays(IL), 2015-05-02(#1) |
| G-400 | 53 | 58.84 | Schuetz, Rachel (2015) (Downers Grove North, IL) | WSC-Silver Girls Conference Meet(IL), 2015-05-09(#1) |
| G-400 | 55 | 58.90 | Bollinger, Skyler (2016) (Yorkville, IL) | Woodstock Girls Invitational(IL), 2015-05-01(#1) |
| G-400 | 56 | 58.95 | Grieves, Alexis (2016) (Metamora, IL) | Mid Illini Girls Conference Meet(IL), 2015-05-07(#1) |
| G-400 | 57 | 58.97 | Sullivan, Madeline (2016) (Hinsdale Central, IL) | WSC-Silver Girls Conference Meet(IL), 2015-05-09(#2) |
| G-400 | 58 | 58.98 | Thompson, Alex (2015) (University of Chicago Lab School, IL) | IL 2A Girls State Prelims(IL), 2015-05-22(#11) |
| G-400 | 59 | 59.01 | Moravec, Emma (2017) (Downers Grove North, IL) | Bruce Ritter Invitational(IL), 2015-04-17(#3) |
| G-400 | 60 | 59.03 | Drab, Elizabeth (2017) (Saint Viator, IL) | IL 2A Girls State Prelims(IL), 2015-05-22(#12) |
| G-400 | 61 | 59.04 | Thorpe, Kiera (2015) (Highland Park, IL) | IL 3A Loyola Academy Girls Sectional(IL), 2015-05-14(#2) |
| G-400 | 62 | 59.05 | Driver, Briana (2015) (Mother McAuley, IL) | GCAC Championships(IL), 2015-05-09(#2) |
| G-400 | 62 | 59.05 | Mcclendon, Jemya (2017) (West Aurora, IL) | AAU Central District Qualifier(IL), 2015-06-14(#2) |
| G-400 | 64 | 59.08 | Mabien, Kiara (2017) (Warren Township, IL) | North Suburban Girls Conference Meet(IL), 2015-05-07(#4) |
| G-400 | 65 | 59.09 | Flammersfeld, Abby (2018) (Oswego East, IL) | Southwest Prairie Girls Conference Meet(IL), 2015-05-07(#4) |
| G-400 | 66 | 59.10 | Mclaurin, Kelsey (2017) (Barrington, IL) | Barrington Girls Invitational(IL), 2015-04-17(#3) |
| G-400 | 67 | 59.11 | Kieser, Lindsey (2015) (Normal Community West, IL) | Bloomington Honor Roll Meet(IL), 2015-05-26(#2) |
| G-400 | 68 | 59.16 | Letz, Renee (2015) (Carl Sandburg, IL) | SWSC-Blue Girls Conference Meet(IL), 2015-05-07(#3) |
| G-400 | 68 | 59.16 | Elder, Sabrina (2018) (Belvidere North, IL) | IL 3A Hononegah Girls Sectional(IL), 2015-05-14(#1) |
| G-400 | 70 | 59.24 | Smart, Tara (2016) (New Trier Township, IL) | USATF Youth National Championships 17-18(IL), 2015-07-05(#9) |
| G-400 | 70 | 59.24 | Harrod, Audrey (2017) (Hinckley-Big Rock, IL) | IL 1A Girls State Finals(IL), 2015-05-23(#7) |
| G-400 | 72 | 59.26 | Thrash, Kailyn (2017) (De La Salle Institute, IL) | IL 2A Girls State Prelims(IL), 2015-05-22(#14) |
| G-400 | 72 | 59.26 | Martin, Jezel (2016) (Bloomington, IL) | Bloomington/Normal Intercity Classic(IL), 2015-04-28(#2) |
| G-400 | 74 | 59.29 | Finegan, Nora (2016) (Fremd, IL) | Mid Suburban League Girls Championships(IL), 2015-05-08(#2) |
| G-400 | 75 | 59.33 | Mainor, Sharon (2016) (Champaign Central, IL) | Jane Dickens Invitational(IL), 2015-06-20(#4) |
| G-400 | 76 | 59.34 | Gary, Julia (2017) (Carl Sandburg, IL) | SWSC-Blue Girls Conference Meet(IL), 2015-05-07(#4) |
| G-400 | 77 | 59.39 | O'Brien, Kelly (2016) (Palatine, IL) | MSL-West Girls Divisional Championship(IL), 2015-04-28(#1) |
| G-400 | 77 | 59.39 | Jonke, Audrey (2015) (Batavia, IL) | Upstate Eight Girls Conference Meet(IL), 2015-05-07(#6) |
| G-400 | 79 | 59.50 | Petro, Rachel (2016) (Downers Grove South, IL) | Downers Grove South Girls Invitational(IL), 2015-04-11(#1) |
| G-400 | 80 | 59.52 | Dwyer, Dana (2017) (Waubonsie Valley, IL) | Upstate Eight Girls Conference Meet(IL), 2015-05-07(#7) |
| G-400 | 81 | 59.57 | Hilton, Rachel (2016) (East Peoria, IL) | IL 2A Dunlap Girls Sectional(IL), 2015-05-15(#1) |
| G-400 | 82 | 59.58 | Unseth, Muriel (2015) (Dunlap, IL) | PJS Honor Roll Meet(IL), 2015-05-26(#3) |
| G-400 | 83 | 59.60 | Staley, Jessica (2015) (Flora, IL) | IL 1A Girls State Finals(IL), 2015-05-23(#8) |
| G-400 | 84 | 59.62 | Brown, Asia (2016) (Lincoln-Way East, IL) | Homewood-Flossmoor Girls Invitational(IL), 2015-04-11(#3) |
| G-400 | 85 | 59.66 | Suggs, Keina (2016) (Glenbard North, IL) | DuPage Valley Girls Conference Meet(IL), 2015-05-07(#1) |
| G-400 | 85 | 59.66 | Olcott, Abby (2016) (Dunlap, IL) | IL 2A Dunlap Girls Sectional(IL), 2015-05-15(#2) |
| G-400 | 87 | 59.68 | Nevins, Mary (2015) (Glenbard West, IL) | WSC-Silver Girls Conference Meet(IL), 2015-05-09(#3) |
| G-400 | 88 | 59.71 | Ford, Jade (2018) (Moline, IL) | Rock Island Girls ABC Invitational(IL), 2015-04-18(#1) |
| G-400 | 88 | 59.71 | Cossio, Anna (2016) (Barrington, IL) | Palatine Relays(IL), 2015-05-02(#3) |
| G-400 | 90 | 59.74 | Pettgrew, Abriana (2015) (Auburn, IL) | IL 3A Hononegah Girls Sectional(IL), 2015-05-14(#3) |
| G-400 | 91 | 59.82 | Robinson, Talia (2018) (Proviso West, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#4) |
| G-400 | 92 | 59.84 | Mcsweeney, Quincy (2015) (Eureka, IL) | Roger Washburn Invitational(IL), 2015-05-01(#1) |
| G-400 | 93 | 59.87 | Miller, Tess (2015) (Huntley, IL) | Fox Valley Girls Conference Meet(IL), 2015-05-07(#1) |
| G-400 | 94 | 59.94 | Mehta, Twinkle (2015) (Mahomet-Seymour, IL) | News-Gazette Honor Roll Meet(IL), 2015-05-18(#2) |
| G-400 | 95 | 59.95 | Mclaurin, Brittany (2016) (Johnson College Prep, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#15) |
| G-400 | 96 | 59.96 | Wasserberg, Molly (2016) (Vernon Hills, IL) | North Suburban Girls Conference Meet(IL), 2015-05-07(#5) |
| G-400 | 97 | 59.98 | Burnett, Teal (2015) (Marshall, IL) | IL 1A Newton Girls Sectional(IL), 2015-05-15(#1) |
| G-400 | 98 | 1:00.03 | Pointer, Robyn (2017) (Granite City, IL) | O'Fallon Girls Invitational(IL), 2015-04-17(#1) |
| G-400 | 99 | 1:00.05 | Allie, Saffilla (2018) (Naperville North, IL) | Gus Scott Co-Ed Invitational(IL), 2015-04-17(#1) |
| G-400 | 99 | 1:00.05 | Mendoza, Jocelyne (2015) (Taft, IL) | Conant Girls Twilight Invitational(IL), 2015-05-01(#2) |
| G-400 | 101 | 1:00.14 | Hoel, Kailey (2016) (Hinsdale South, IL) | WSC-Gold Girls Conference Meet(IL), 2015-05-07(#2) |
| G-400 | 101 | 1:00.14 | Lussier, Lucy (2016) (Lyons Township, IL) | WSC-Silver Girls Conference Meet(IL), 2015-05-09(#4) |
| G-400 | 103 | 1:00.16 | Ricca, Cece (2016) (Notre Dame, IL) | Big 12 Girls Conference Meet(IL), 2015-05-08(#3) |
| G-400 | 104 | 1:00.21 | Shepard, Jamiah (2015) (Thornwood, IL) | Lincoln-Way C Lady Knights Invitational(IL), 2015-04-11(#1) |
| G-400 | 105 | 1:00.22 | Henderson, Emma (2017) (Tuscola, IL) | Sullivan Redskin Invitational(IL), 2015-05-05(#2) |
| G-400 | 106 | 1:00.25 | O'Malley, Sara (2016) (Grayslake Central, IL) | IL 3A Fremd Girls Sectional(IL), 2015-05-15(#3) |
| G-400 | 107 | 1:00.26 | Hoffert, Lindsey (2015) (Bureau Valley, IL) | Roger Washburn Invitational(IL), 2015-05-01(#2) |
| G-400 | 108 | 1:00.27 | Stiver, Reilly (2016) (Springfield, IL) | Southeast Spartan Girls Invitational(IL), 2015-04-11(#4) |
| G-400 | 109 | 1:00.28 | Broughton, Antoinette (2015) (Homewood-Flossmoor, IL) | Lockport Girls Invitational(IL), 2015-04-24(#5) |
| G-400 | 109 | 1:00.28 | Vero, Shea (2016) (Rosary, IL) | IL 2A Plano Girls Sectional(IL), 2015-05-15(#2) |
| G-400 | 111 | 1:00.37 | Griffiths, Emma (2015) (Providence Catholic, IL) | East Suburban Catholic Girls Conference Meet(IL), 2015-05-06(#1) |
| G-400 | 111 | 1:00.37 | Meyer, Madison (2016) (Carterville, IL) | IL 2A Triad Girls Sectional(IL), 2015-05-14(#3) |
| G-400 | 113 | 1:00.39 | Williams, Kanosha (2018) (Danville, IL) | News-Gazette Honor Roll Meet(IL), 2015-05-18(#4) |
| G-400 | 114 | 1:00.40 | Karwiec, Edyta (2015) (Hoffman Estates, IL) | Conant Girls Twilight Invitational(IL), 2015-05-01(#1) |
| G-400 | 114 | 1:00.40 | Piotrowski, Julia (2018) (Barrington, IL) | IL 3A Fremd Girls Sectional(IL), 2015-05-15(#4) |
| G-400 | 116 | 1:00.42 | Isom, Kayla (2017) (Lockport Township , IL) | Lockport Girls Invitational(IL), 2015-04-24(#6) |
| G-400 | 117 | 1:00.43 | Bibbs, Janese (2015) (South Elgin, IL) | IL 3A St. Charles North Girls Sectional(IL), 2015-05-15(#3) |
| G-400 | 118 | 1:00.46 | Hinds, Jerrie (2016) (Westinghouse Career Academy, IL) | Conant Girls Twilight Invitational(IL), 2015-05-01(#2) |
| G-400 | 119 | 1:00.47 | Platzbecker, Emma (2016) (Harlem, IL) | Woodstock Girls Invitational(IL), 2015-05-01(#4) |
| G-400 | 119 | 1:00.47 | Winters, Aaliyah (2015) (Streamwood, IL) | Upstate Eight Girls Conference Meet(IL), 2015-05-07(#8) |
| G-400 | 119 | 1:00.47 | Chapman, Kiara (2017) (Jersey Comm, IL) | IL 2A Springfield Southeast Girls Sectional(IL), 2015-05-14(#2) |
| G-400 | 122 | 1:00.50 | Anderson, Dominque (2017) (Il Mathematics & Science Academy, IL) | Matt Wulf Invitational(IL), 2015-04-17(#2) |
| G-400 | 123 | 1:00.52 | Hendrickson, Marguerite (2018) (St. Thomas More, IL) | Monticello Lady Sages Invitational(IL), 2015-05-01(#2) |
| G-400 | 123 | 1:00.52 | Layne, Erin (Illinois Valley Central, IL) | IL 2A Dunlap Girls Sectional(IL), 2015-05-15(#4) |
| G-400 | 125 | 1:00.57 | Ramirez, Sullibet (2015) (Bloom Township, IL) | Lockport Girls Invitational(IL), 2015-04-24(#7) |
| G-400 | 126 | 1:00.58 | Marshall, Brea (2018) (Collinsville, IL) | Southwest Conference Girls Meet(IL), 2015-05-06(#1) |
| G-400 | 126 | 1:00.58 | Ortiz, Tori (2018) (Batavia, IL) | Upstate Eight Girls Conference Meet(IL), 2015-05-07(#9) |
| G-400 | 126 | 1:00.58 | Allen, Sarah (2015) (Bloomington Central Catholic, IL) | IL 2A Clinton Girls Sectional(IL), 2015-05-14(#1) |
| G-400 | 129 | 1:00.60 | Leever, Kristen (2017) (Bartlett, IL) | Barrington Girls Invitational(IL), 2015-04-17(#6) |
| G-400 | 130 | 1:00.61 | Reese, Taliah (2017) (O'Fallon, IL) | IL 3A O'Fallon Girls Sectional(IL), 2015-05-15(#3) |
| G-400 | 131 | 1:00.65 | Jamrozek, Maddie (2015) (Montini Catholic, IL) | IL 2A Glenbard South Girls Sectional(IL), 2015-05-15(#1) |
| G-400 | 132 | 1:00.69 | Hughes, Brion (2016) (Waubonsie Valley, IL) | Gus Scott Co-Ed Invitational(IL), 2015-04-17(#2) |
| G-400 | 133 | 1:00.72 | Cashdollar, Lorie (2018) (Edwardsville, IL) | Southwest Conference Girls Meet(IL), 2015-05-06(#2) |
| G-400 | 133 | 1:00.72 | Freeman, Achante (2017) (Plainfield Central, IL) | Southwest Prairie Girls Conference Meet(IL), 2015-05-07(#5) |
| G-400 | 135 | 1:00.75 | Shannon, Tess (2018) (Fenwick, IL) | New Trier Lady Trevian Invitational(IL), 2015-05-02(#1) |
| G-400 | 135 | 1:00.75 | Stone, Hannah (2015) (Tolono Unity, IL) | Monticello Lady Sages Invitational(IL), 2015-05-01(#3) |
| G-400 | 137 | 1:00.76 | Siddiqui, Roma (2016) (Niles West, IL) | IL 3A Loyola Academy Girls Sectional(IL), 2015-05-14(#4) |
| G-400 | 138 | 1:00.78 | Bush, Estella (2015) (Jamaica, IL) | IL 1A Tolono Unity Girls Sectional(IL), 2015-05-15(#1) |
| G-400 | 138 | 1:00.78 | Dade, Shaheeda (Unattached, IL) | USATF JO Region 7 Qualifier(IL), 2015-07-12(#8) |
| G-400 | 140 | 1:00.81 | Weber, Emma (Newton, IL) | IL 1A Newton Girls Sectional(IL), 2015-05-15(#3) |
| G-400 | 141 | 1:00.83 | Watson, Charlicia (2015) (Springfield Southeast, IL) | Springfield Girls City Meet(IL), 2015-04-29(#2) |
| G-400 | 142 | 1:00.84 | Downs, Rebecca (2016) (Auburn, IL) | Jockish-Grandone Invitational(IL), 2015-05-02(#1) |
| G-400 | 143 | 1:00.89 | Kennedy, Tiana (2017) (Bureau Valley, IL) | Roger Washburn Invitational(IL), 2015-05-01(#3) |
| G-400 | 144 | 1:00.90 | White, Zaneta (2015) (Springfield Southeast, IL) | Glenwood Co-Ed Titan Invitational(IL), 2015-04-24(#1) |
| G-400 | 144 | 1:00.90 | Webster, Kyra (2016) (Springfield, IL) | Springfield Girls City Meet(IL), 2015-04-29(#3) |
| G-400 | 144 | 1:00.90 | Benson, Valencia (2016) (Thornton Township, IL) | IL 3A Homewood-Flossmoor Girls Sectional(IL), 2015-05-14(#4) |
| G-400 | 147 | 1:00.94 | Wagenbach, Bethany (Tremont, IL) | IL 1A Lewistown Girls Sectional(IL), 2015-05-15(#3) |
| G-400 | 148 | 1:00.97 | Ballard, Kaira (2016) (Lincoln-Way North, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#19) |
| G-400 | 149 | 1:00.99 | Sidaugaite, Vejune (Tinley Park, IL) | IL 2A Kankakee Girls Sectional(IL), 2015-05-14(#3) |
| G-400 | 149 | 1:00.99 | Strohaker, Kathleen (2017) (St. Charles East, IL) | IL 3A St. Charles North Girls Sectional(IL), 2015-05-15(#6) |
| G-400 | 151 | 1:01.01 | Fisher, Cameryn (2018) (Proviso West, IL) | WSC-Silver Girls Conference Meet(IL), 2015-05-09(#5) |
| G-400 | 151 | 1:01.01 | Woods, Garesia (2017) (Bloom Township, IL) | AAU JO Region 13 Qualifier(IL), 2015-07-05(#5) |
| G-400 | 153 | 1:01.02 | Richie, Taylor (2016) (Dwight, IL) | IL 1A Seneca Girls Sectional(IL), 2015-05-15(#1) |
| G-400 | 154 | 1:01.05 | Wells, Kennedy (2017) (South Elgin, IL) | IL 3A St. Charles North Girls Sectional(IL), 2015-05-15(#7) |
| G-400 | 155 | 1:01.06 | Simmons, Amari (Rich East , IL) | AAU Central District Qualifier(IL), 2015-06-14(#8) |
| G-400 | 156 | 1:01.07 | Milburn, Emma (2018) (Lake Forest, IL) | Paul Wallace Classic (IL), 2015-01-01(#4) |
| G-400 | 157 | 1:01.09 | Love, Yakira (2015) (Westinghouse Career Academy, IL) | Conant Girls Twilight Invitational(IL), 2015-05-01(#4) |
| G-400 | 157 | 1:01.09 | Nieves, Tatiana (2015) (Trinity, IL) | IL 2A Girls State Prelims(IL), 2015-05-22(#18) |
| G-400 | 157 | 1:01.09 | Jackson, Trenice (2015) (Rich East , IL) | Paul Wallace Classic (IL), 2015-01-01(#12) |
| G-400 | 160 | 1:01.10 | Nottke, Beatrice (2016) (Wheaton North, IL) | DuPage Valley Girls Conference Meet(IL), 2015-05-07(#3) |
| G-400 | 161 | 1:01.11 | Allen, Brittney (2016) (Thornwood, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#21) |
| G-400 | 162 | 1:01.13 | Jacobs, Paris (2016) (Cahokia, IL) | Alton Girls Invitational(IL), 2015-04-23(#2) |
| G-400 | 162 | 1:01.13 | Hollie, Brittany (2017) (Rich South, IL) | USATF Youth National Championships 15-16(IL), 2015-07-05(#9) |
| G-400 | 164 | 1:01.14 | Lee, India (2016) (Rich South, IL) | Oswego East Girls Invitational(IL), 2015-04-18(#7) |
| G-400 | 165 | 1:01.17 | Maxey, Baylee (2018) (Mascoutah, IL) | IL 2A Triad Girls Sectional(IL), 2015-05-14(#4) |
| G-400 | 166 | 1:01.19 | Scales, Jaylyn (2018) (Homewood-Flossmoor, IL) | AAU JO Region 13 Qualifier(IL), 2015-07-05(#6) |
| G-400 | 167 | 1:01.20 | Bonney, Katie (2017) (Hoffman Estates, IL) | Barrington Girls Invitational(IL), 2015-04-17(#7) |
| G-400 | 167 | 1:01.20 | Meissner, Faye (2018) (Breese Central, IL) | Cahokia Conference Championships(IL), 2015-05-06(#1) |
| G-400 | 167 | 1:01.20 | Hoover, Mariah (2016) (Rock Island, IL) | Western Big Six Girls Conference Meet(IL), 2015-05-09(#2) |
| G-400 | 167 | 1:01.20 | Whitmore, Ashley (2016) (Byron, IL) | IL 1A Oregon Girls Sectional(IL), 2015-05-15(#1) |
| G-400 | 171 | 1:01.23 | Johnson, Deandra (Crete-Monee, IL) | IL 3A Homewood-Flossmoor Girls Sectional(IL), 2015-05-14(#5) |
| G-400 | 172 | 1:01.31 | Thompson, Sierra (2017) (Mattoon, IL) | Mattoon Girls Invitational(IL), 2015-04-21(#1) |
| G-400 | 172 | 1:01.31 | Parker, Carinne (2017) (Morgan Park, IL) | CPS Girls Varsity Trials(IL), 2015-05-05(#6) |
| G-400 | 174 | 1:01.32 | Williams, Adrianna (2017) (Centennial, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#6) |
| G-400 | 175 | 1:01.34 | Guingrich, Ashley (2015) (Notre Dame, IL) | Rock Island Girls ABC Invitational(IL), 2015-04-18(#3) |
| G-400 | 175 | 1:01.34 | Pace, Andrea (2017) (Clifton Central, IL) | Herscher Invitational(IL), 2015-05-01(#1) |
| G-400 | 177 | 1:01.36 | Yoggerst, Lexi (2015) (Riverton, IL) | Sangamon County Invitational(IL), 2015-05-08(#1) |
| G-400 | 178 | 1:01.38 | Christopher, Sarah (Pontiac, IL) | Roger Washburn Invitational(IL), 2015-05-01(#4) |
| G-400 | 179 | 1:01.39 | Erewele, Ozzie (2018) (Springfield, IL) | Capital City Girls F/S Classic(IL), 2015-04-07(#1) |
| G-400 | 179 | 1:01.39 | Sirvinskas, Julia (2016) (Maine South, IL) | CSL-South Girls Conference Meet(IL), 2015-05-07(#2) |
| G-400 | 179 | 1:01.39 | Bently, Grace (2018) (Lake Forest, IL) | USATF Youth National Championships 15-16(IL), 2015-07-05(#13) |
| G-400 | 182 | 1:01.40 | Rabs, Rebecca (2016) (Buffalo Grove, IL) | IL 3A Fremd Girls Sectional(IL), 2015-05-15(#5) |
| G-400 | 183 | 1:01.45 | Bohannon, Danielle (2015) (Edwardsville, IL) | Madison County Championships(IL), 2015-04-28(#1) |
| G-400 | 184 | 1:01.46 | Griffin, Hope (2018) (Charleston, IL) | IL 2A Clinton Girls Sectional(IL), 2015-05-14(#2) |
| G-400 | 185 | 1:01.51 | Minogue, Brandie (2016) (Crystal Lake South, IL) | Fox Valley Girls Conference Meet(IL), 2015-05-07(#2) |
| G-400 | 186 | 1:01.53 | Thompson, Alexandre (University of Chicago Lab School, IL) | Chicago Christian Invitational(IL), 2015-05-01(#1) |
| G-400 | 186 | 1:01.53 | Schwartz, Caily (2015) (York Community, IL) | WSC-Silver Girls Conference Meet(IL), 2015-05-09(#6) |
| G-400 | 188 | 1:01.54 | Sluman, Kathryn (2016) (Hinsdale Central, IL) | WSC-Silver Girls Conference Meet(IL), 2015-05-09(#7) |
| G-400 | 189 | 1:01.56 | Gowgiel, Madeline (2015) (Carl Sandburg, IL) | Sandburg Girls Eagle Classic(IL), 2015-04-23(#3) |
| G-400 | 189 | 1:01.56 | Edmondson, Darby (2017) (Batavia, IL) | Kane County Girls Championships(IL), 2015-04-30(#7) |
| G-400 | 191 | 1:01.58 | Jimenez, Isabella (2016) (Homewood-Flossmoor, IL) | SWSC-Blue Girls Conference Meet(IL), 2015-05-07(#6) |
| G-400 | 192 | 1:01.60 | Gowgiel, Maddie (2015) (Carl Sandburg, IL) | Falcon Blue & Gold Invitational(IL), 2015-04-17(#3) |
| G-400 | 192 | 1:01.60 | Fry, Chloe (2015) (Glenbard South, IL) | Metro Suburban Girls Quad(IL), 2015-04-28(#1) |
| G-400 | 194 | 1:01.61 | Centeno, Maggy (2018) (Schaumburg, IL) | WWS Girls Tiger Invitational(IL), 2015-05-01(#8) |
| G-400 | 195 | 1:01.62 | Rhines, Ronisha (2016) (East St. Louis-Senior, IL) | St. Clair County Girls Championships(IL), 2015-04-29(#4) |
| G-400 | 196 | 1:01.64 | Ishamuddin, Sarah (2017) (Grayslake Central, IL) | Fox Valley Girls Conference Meet(IL), 2015-05-07(#3) |
| G-400 | 196 | 1:01.64 | Snyder, Sydney (2017) (Moline, IL) | IL 3A O'Fallon Girls Sectional(IL), 2015-05-15(#7) |
| G-400 | 198 | 1:01.67 | Banuelos, Lynette (2016) (Addison Trail, IL) | Palatine Relays(IL), 2015-05-02(#5) |
| G-400 | 199 | 1:01.69 | Zimmer, Nikki (2015) (Elgin, IL) | Upstate Eight Girls Conference Meet(IL), 2015-05-07(#11) |
| G-400 | 199 | 1:01.69 | Crawford, Lisa (2016) (Springfield Southeast, IL) | Springfield Girls City Meet(IL), 2015-04-29(#4) |
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