| US Open - ženy | 08/23 23:00 | 14 | [88] Viktorija Golubic v Hailey Baptiste [157] | 6-4,6-4 | |
| WTA Cincinnati | 08/13 17:40 | 14 | [151] Hailey Baptiste v Magda Linette [70] | 3-6,0-6 | |
| WTA Washington | 08/01 18:20 | 25 | [7] Jessica Pegula v Hailey Baptiste [148] | 6-2,6-2 | |
| French Open - ženy | 05/24 14:25 | 23 | [36] Anhelina Kalinina v Hailey Baptiste [123] | Retired | |
| French Open - ženy | 05/20 14:05 | 19 | [167] Nastasja Schunk v Hailey Baptiste [125] | 5-7,6-4,2-6 | |
| French Open - ženy | 05/18 14:05 | 15 | [153] Julia Grabher v Hailey Baptiste [125] | 6-1,3-6,2-6 | |
| French Open - ženy | 05/16 16:15 | 14 | [162] Olivia Gadecki v Hailey Baptiste [125] | 7-5,3-6,5-7 | |
| WTA Paříž | 05/12 09:00 | 26 | [126] Hailey Baptiste v Beatriz Haddad Maia [52] | 6-3,3-6,2-6 | |
| WTA Paříž | 05/10 09:40 | 25 | [203] Anastasia Zakharova v Hailey Baptiste [126] | 6-7,4-6 | |
| ITF W100 Charleston | 04/28 17:00 | 26 | [127] Hailey Baptiste v Gabriela Ce [292] | 6-4,4-6,4-6 | |
| ITF W100 Charleston | 04/27 20:40 | 25 | [127] Hailey Baptiste v Grace Min [186] | 6-3,1-6,7-5 | |
| ITF W100 Palm Harbor | 04/13 17:00 | 25 | Hailey Baptiste v Louisa Chirico | 3-6,3-6 | |
| ITF W100 Palm Harbor | 04/13 17:00 | 25 | Hailey Baptiste v Emina Bektas | Cancelled | |
| WTA Charleston | 04/06 14:00 | 25 | [34] Alize Cornet v Hailey Baptiste [124] | 6-3,6-2 | |
| WTA Charleston | 04/05 14:00 | 24 | [55] Elena Gabriela Ruse v Hailey Baptiste [124] | 3-6,0-6 | |
| WTA Miami | 03/23 15:00 | 23 | [122] Hailey Baptiste v Irina-Camelia Begu [70] | 7-6,1-6,1-6 | |
| WTA Indian Wells | 03/09 22:10 | 23 | [39] Ajla Tomljanovic v Hailey Baptiste [119] | 6-2,2-6,6-2 | |
| WTA Monterrey | 02/27 18:40 | 19 | [102] Diane Parry v Hailey Baptiste [131] | 6-2,6-1 | |
| WTA Monterrey | 02/26 23:05 | 14 | [450] Maria Portillo Ramirez v Hailey Baptiste [131] | 4-6,6-2,3-6 | |
| WTA Guadalajara | 02/25 02:25 | 26 | [45] Maria Camila Osorio v Hailey Baptiste [131] | 1-6,6-3,6-3 | |
| WTA Guadalajara | 02/22 20:00 | 25 | [131] Hailey Baptiste v Viktoria Kuzmova [140] | 6-3,6-3 | |
| WTA Guadalajara | 02/20 19:05 | 19 | [131] Hailey Baptiste v Victoria Jimenez Kasintseva [191] | 6-3,6-4 | |
| WTA Guadalajara | 02/19 18:35 | 14 | Hailey Baptiste v Marcela Zacarias | 6-1,6-3 | |
| ITF W60 Rome, GA | 02/03 20:00 | 26 | [137] Hailey Baptiste v Katie Volynets [159] | 1-6,2-6 | |
| ITF W60 Rome, GA | 02/01 19:10 | 25 | [137] Hailey Baptiste v En Shuo Liang [188] | 6-3,6-2 | |
| ITF W60 Orlando | 01/29 17:10 | 27 | [171] Christina McHale v Hailey Baptiste [165] | 6-2,6-1 | |
| ITF W60 Orlando | 01/28 19:20 | 26 | Sachia Vickery v Hailey Baptiste | 2-6,6-4,2-6 | |
| ITF W60 Orlando | 01/27 15:00 | 25 | [280] Ashlyn Krueger v Hailey Baptiste [165] | 3-6,2-6 | |
| Australian Open - ženy | 01/20 01:40 | 24 | [165] Hailey Baptiste v Maddison Inglis [133] | 6-7,6-2,2-6 | |
| Australian Open - ženy | 01/18 02:10 | 23 | [165] Hailey Baptiste v Caroline Garcia [70] | 4-6,7-6,6-3 |
Hailey Baptisteová (nepřechýleně Baptiste; * 3. listopadu 2001 Washington, D.C.) je americká profesionální tenistka. Ve své dosavadní kariéře na okruhu WTA Tour vyhrála jeden turnaj ve čtyřhře. V sérii WTA 125 vybojovala jednu deblovou trofej. V rámci okruhu ITF získala čtyři tituly ve dvouhře a čtyři ve čtyřhře.
Na žebříčku WTA byla ve dvouhře nejvýše klasifikována v březnu 2024 na 96. místě a ve čtyřhře v únoru téhož roku na 122. místě.
V juniorském tenise si zahrála finále čtyřhry US Open 2018, v němž s krajankou Dalaynou Hewittovou podlehly americkému páru Coco Gauffová a Caty McNallyová.