| WTA Charleston | 04/07 15:45 | 25 | [216] Hailey Baptiste v Ons Jabeur [28] | 3-6,3-6 | |
| WTA Charleston | 04/06 17:25 | 24 | [155] Caroline Dolehide v Hailey Baptiste [216] | 3-6,3-6 | |
| WTA Charleston | 04/06 14:00 | 24 | Camila Giorgi v Hailey Baptiste | Cancelled | |
| WTA Miami | 03/24 22:55 | 23 | [236] Hailey Baptiste v Kristina Kucova [149] | 4-6,6-2,5-7 | |
| WTA Miami | 03/23 17:10 | 19 | [236] Hailey Baptiste v Greet Minnen [112] | 6-3,6-4 | |
| WTA Miami | 03/22 19:15 | 14 | [76] Misaki Doi v Hailey Baptiste [236] | 6-1,0-6,6-7 | |
| ITF W25 Boca Raton | 02/27 17:35 | 28 | [242] Hailey Baptiste v Varvara Lepchenko [177] | 3-6,7-6,2-6 | |
| ITF W25 Boca Raton | 02/26 19:05 | 27 | [241] Tereza Mrdeza v Hailey Baptiste [242] | 6-3,2-6,2-6 | |
| ITF W25 Boca Raton | 02/25 18:05 | 26 | [373] Robin Montgomery v Hailey Baptiste [242] | 3-6,3-6 | |
| ITF W25 Boca Raton | 02/23 20:10 | 25 | [242] Hailey Baptiste v Varvara Flink [179] | 6-1,4-6,7-6 | |
| ITF W25 Orlando | 02/17 23:05 | 25 | [236] Hailey Baptiste v Renata Zarazua [142] | 7-5,5-7,3-6 | |
| ITF W60 Rome, GA | 01/27 20:35 | 25 | [175] Veronica Cepede Royg v Hailey Baptiste [234] | 6-2,6-3 | |
| Australian Open - ženy | 01/12 06:00 | 15 | [233] Hailey Baptiste v Maria C O Serrano [186] | 6-7,6-7 | |
| Australian Open - ženy | 01/10 08:00 | 60 | [228] Victoria Kan v Hailey Baptiste [233] | 6-7,2-6 | |
| ITF W100 Charleston | 11/05 16:50 | 26 | [244] Hailey Baptiste v Lauren Davis [73] | 2-6,1-6 | |
| ITF W100 Charleston | 11/04 19:45 | 25 | [244] Hailey Baptiste v Astra Sharma [127] | 6-2,7-6 | |
| ITF W100 Charleston | 11/03 17:05 | 54 | [173] Veronica Cepede Royg v Hailey Baptiste [244] | 2-6,7-6,8-10 | |
| ITF W100 Charleston | 11/02 19:15 | 54 | [245] Hailey Baptiste v Robin Anderson [202] | 6-1,7-5 | |
| ITF W80 Tyler | 10/30 17:00 | 26 | [134] Katarzyna Kawa v Hailey Baptiste [245] | 6-3,4-6,6-1 | |
| ITF W80 Tyler | 10/29 16:55 | 25 | [245] Hailey Baptiste v Kristie Ahn [106] | 6-2,6-2 | |
| ITF W80 Macon | 10/19 15:40 | 54 | [246] Hailey Baptiste v Asia Muhammad [198] | 1-6,2-6 | |
| US Open - ženy | 08/31 15:00 | 23 | [44] Kristina Mladenovic v Hailey Baptiste [236] | 7-5,6-2 | |
| WTA Lexington | 08/09 19:10 | 45 | [233] Hailey Baptiste v Usue Maitane Arconada [138] | 5-7,2-6 | |
| MatchPlay 120 - ženy | 07/08 20:00 | - | [233] Hailey Baptiste v Madison Brengle [79] | 2-6,3-6 | |
| MatchPlay 120 - ženy | 07/06 17:00 | 1 | Hailey Baptiste v Ann Li | Cancelled | |
| US Pro Tennis Series - ženy | 05/15 21:00 | - | [178] Varvara Lepchenko v Hailey Baptiste [233] | 6-4,6-2 | |
| US Pro Tennis Series - ženy | 05/15 15:30 | - | [358] Panna Udvardy v Hailey Baptiste [233] | 2-6,5-7 | |
| US Pro Tennis Series - ženy | 05/13 20:55 | 1 | [233] Hailey Baptiste v Marine Partaud [488] | 4-6,0-6 | |
| US Pro Tennis Series - ženy | 05/13 14:30 | 1 | Channelle Van Nguyen v Hailey Baptiste | 3-6,3-6 | |
| US Pro Tennis Series - ženy | 05/11 20:35 | 1 | [368] Alycia Parks v Hailey Baptiste [233] | 3-6,3-6 |
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.