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Top Senior Girls At 300 Meter Hurdles
| RANK | TIME | ATHLETE/TEAM | GRADE | MEET DATE PLACE |
|---|---|---|---|---|
| 1 | 40.82 | MD Bullis School | 2020 | |
| 2 | 41.01 | CA Wilson Long Beach (SS) | 2020 | |
| 3 | 41.15 | FL St. Thomas Aquinas HS | 2020 | |
| 4 | 41.38 | GA Maynard H. Jackson High School | 2020 | |
| 5 | 41.46 | GA Campbell High School | 2020 | |
| 6 | 41.81 | TX The Woodlands | 2020 | |
| 7 | 42.06 | CA Norco High School (SS) | 2020 | |
| 8 | 42.31 | TX Wylie East | 2020 | Region 2-5A Meet 1st |
| 8 | 42.31 | WI DSHA | 2020 | |
| 10 | 42.39 | AZ Campo Verde High School | 2020 | |
| 11 | 42.42 | FL Hallandale HS | 2020 | |
| 12 | 42.67 | MO Battle High School | 2020 | |
| 13 | 42.74 | FL Lakewood Ranch HS | 2020 | |
| 14 | 42.75 | CA J.W. North High (SS) | 2020 | |
| 15 | 42.84 | OH Wester. Central | 2020 | |
| 15 | 42.84 | TX Fort Bend Travis | 2020 | |
| 17 | 42.86 | FL Miami Northwestern HS | 2020 | |
| 18 | 42.90 | IN Warren Central High School | 2020 | |
| 19 | 42.92 | FL Flanagan HS | 2020 | |
| 20 | 42.97 | FL Windermere High School | 2020 | |
| 21 | 42.98 | FL Pine Forest HS | 2020 | |
| 22 | 42.99 | WA Tahoma Senior High School | 2020 | |
| 23 | 43.05 | OH Dub. Scioto | 2020 | |
| 24 | 43.11 | MN Belle Plaine High School | 2020 | |
| 25 | 43.28 | UT American Fork | 2020 | |
| 26 | 43.31 | MI Troy | 2020 | |
| 27 | 43.35 | MI Oak Park | 2020 | |
| 28 | 43.46 | TN Whitehaven High School | 2020 | |
| 28 | 43.46 | OH Cham. Julienne | 2020 | |
| 30 | 43.50 | TX Converse Judson | 2020 | Region 4-6A Meet 1st |
| 31 | 43.52 | OR Thurston | 2020 | |
| 32 | 43.53 | OK Edmond Memorial High School | 2020 | |
| 32 | 43.53 | TN Briarcrest Christian School | 2020 | |
| 34 | 43.55 | OH Indian Hill | 2020 | |
| 35 | 43.56 | GA Alexander | 2020 | |
| 36 | 43.60 | MO Webster Groves High School | 2020 | |
| 37 | 43.64 | NC North Mecklenburg | 2020 | |
| 38 | 43.66 | ID Pocatello High School | 2020 | |
| 39 | 43.68 | IL Arthur-Lovington-Atwood- Hammond HS | 2020 | |
| 39 | 43.68 | TX Aldine Eisenhower | 2020 | Region 2-6A Meet 2nd |
| 41 | 43.69 | OH Magnificat | 2020 | |
| 42 | 43.71 | NV Centennial High | 2020 | |
| 43 | 43.72 | OH Bellefontaine | 2020 | |
| 44 | 43.74 | TX DeSoto | 2020 | |
| 45 | 43.82 | FL Hallandale HS | 2020 | FHSAA 2A District 15 2nd P |
| 46 | 43.83 | GA Greater Atlanta Christian | 2020 | |
| 46 | 43.83 | GA Monroe Comprehensive High School | 2020 | |
| 48 | 43.87 | VA Maury High School | 2020 | |
| 49 | 43.88 | IL East St. Louis (Senior) HS | 2020 | |
| 50 | 43.89 | ID Cole Valley Christian School | 2020 | |
| 50 | 43.89 | TX Houston Lamar | 2020 | Victor Lopez Classic 2nd P |
| 52 | 43.92 | IN North Central High School (Indianapolis) | 2020 | |
| 53 | 43.93 | GA Alpharetta | 2020 | |
| 54 | 44.00 | CA Los Gatos High School (CC) | 2020 | |
| 55 | 44.02 | CT Ridgefield High School | 2020 | |
| 56 | 44.03 | VA Saint Catherine's | 2020 | |
| 57 | 44.04 | MD Reservoir High School | 2020 | |
| 58 | 44.09 | TX Keller Timber Creek | 2020 | |
| 59 | 44.12 | MI Corunna | 2020 | |
| 60 | 44.14 | OH Berea-Midpark | 2020 | |
| 61 | 44.16 | TX Atascocita | 2020 | |
| 61 | 44.16 | IN Lafayette Central Catholic High School | 2020 | |
| 63 | 44.18 | UT Hurricane | 2020 | |
| 63 | 44.18 | NC Providence | 2020 | |
| 65 | 44.19 | FL Lakeland Christian School | 2020 | |
| 66 | 44.20 | CA Eleanor Roosevelt (SS) | 2020 | |
| 67 | 44.21 | MS Brandon High School | 2020 | |
| 68 | 44.23 | TN Harpeth Hall School | 2020 | |
| 69 | 44.27 | OH Solon | 2020 | |
| 70 | 44.28 | PA North Penn | 2020 | |
| 71 | 44.29 | FL Wellington HS | 2020 | |
| 72 | 44.31 | FL Dwyer HS | 2020 | |
| 73 | 44.32 | UT Davis | 2020 | |
| 74 | 44.34 | ID McCall-Donnelly High School | 2020 | |
| 75 | 44.38 | PA Cheltenham | 2020 | |
| 76 | 44.41 | CO Mountain Vista High School | 2020 | |
| 77 | 44.43 | CA Antelope High School (SJ) | 2020 | |
| 78 | 44.44 | MI Rockford | 2020 | |
| 79 | 44.47 | OH New Philadelphia | 2020 | |
| 80 | 44.50 | MD Franklin High School | 2020 | |
| 81 | 44.51 | MS Meridian High School | 2020 | |
| 82 | 44.53 | CA Monterey Trail High (SJ) | 2020 | |
| 83 | 44.56 | CA Salesian High (NC) | 2020 | |
| 84 | 44.58 | SD McCook Central/Montrose High School | 2020 | |
| 85 | 44.61 | PA Saucon Valley | 2020 | |
| 85 | 44.61 | TX Converse Judson | 2020 | |
| 85 | 44.61 | GA Cambridge HS | 2020 | |
| 85 | 44.61 | OH Lakeview | 2020 | |
| 89 | 44.63 | FL South Dade HS | 2020 | |
| 89 | 44.63 | NM Sandia High School | 2020 | |
| 91 | 44.65 | UT Cedar | 2020 | |
| 92 | 44.66 | TX Pearland | 2020 | |
| 93 | 44.66 | IN Pendleton Heights High School | 2020 | |
| 94 | 44.67 | CA San Marcos High (SD) | 2020 | |
| 95 | 44.69 | NE Omaha North High School | 2020 | |
| 95 | 44.69 | CA Rancho Cucamonga (SS) | 2020 | |
| 97 | 44.71 | CA Christian High School (SD) | 2020 | |
| 98 | 44.72 | LA St. Amant | 2020 | |
| 98 | 44.72 | PA Western Wayne | 2020 | |
| 98 | 44.72 | CT Trumbull High School | 2020 |