| US Pro Tennis Series - ženy | 05/11 20:35 | 1 | [368] Alycia Parks v Hailey Baptiste [233] | 3-6,3-6 | |
| US Pro Tennis Series - ženy | 05/11 16:30 | 1 | [233] Hailey Baptiste v Panna Udvardy [358] | 6-4,6-3 | |
| WTA Indian Wells | 03/02 21:10 | 24 | [247] Hailey Baptiste v Katie Boulter [396] | 5-7,3-6 | |
| ITF W25 Rancho Santa Fe | 02/28 19:15 | 28 | [192] Xiaodi You v Hailey Baptiste [249] | 6-3,6-2 | |
| ITF W25 Rancho Santa Fe | 02/27 19:00 | 27 | [249] Hailey Baptiste v Olga Danilovic [178] | 4-6,6-3,6-0 | |
| ITF W25 Rancho Santa Fe | 02/26 18:00 | 26 | [231] Gabriela Ce v Hailey Baptiste [249] | 1-6,3-6 | |
| ITF W25 Rancho Santa Fe | 02/25 21:40 | 25 | [451] Kayla Day v Hailey Baptiste [249] | Retired | |
| ITF W100 Nicholasville | 02/10 18:55 | 54 | [240] Hailey Baptiste v Francoise Abanda [377] | 4-6,6-4,7-10 | |
| WTA Newport Beach | 01/28 18:45 | 25 | [124] Nicole Gibbs v Hailey Baptiste [232] | 6-4,6-4 | |
| WTA Newport Beach | 01/27 21:40 | 24 | [423] Kayla Day v Hailey Baptiste [232] | 6-4,4-6,3-6 | |
| Australian Open - ženy | 01/16 06:45 | 45 | [118] Liudmila Samsonova v Hailey Baptiste [229] | 1-6,6-2,6-2 | |
| Australian Open - ženy | 01/14 00:00 | 44 | [234] Kyoka Okamura v Hailey Baptiste [229] | 1-6,4-6 | |
| ITF W25 Tucson | 11/24 20:00 | 29 | [301] Marcela Zacarias v Hailey Baptiste [269] | 6-4,4-6,3-6 | |
| ITF W25 Tucson | 11/23 20:45 | 28 | Hailey Baptiste v Katie Volynets | 6-1,7-6 | |
| ITF W25 Tucson | 11/23 16:30 | 27 | [269] Hailey Baptiste v Sophia Whittle [486] | 7-5,6-3 | |
| ITF W25 Tucson | 11/22 20:15 | 26 | Hailey Baptiste v Tori Kinard | 6-4,7-6 | |
| ITF W25 Tucson | 11/20 23:10 | 25 | Hailey Baptiste v Nastja Kolar | 6-3,7-6 | |
| WTA Houston | 11/12 21:40 | 25 | [279] Hailey Baptiste v Kirsten Flipkens [94] | 6-3,3-6,6-7 | |
| WTA Houston | 11/11 16:00 | 24 | [279] Hailey Baptiste v Elitsa Kostova [197] | 6-2,6-4 | |
| ITF W60 Asuncion | 10/29 22:20 | 25 | Hailey Baptiste v Lara Escauriza | 5-7,4-6 | |
| ITF W25 Hilton Head Island | 10/09 17:55 | 25 | Hailey Baptiste v Emiliana Arango | 4-6,6-7 | |
| ITF W60 Charleston | 10/03 16:15 | 26 | [253] Hailey Baptiste v Grace Min [374] | 3-6,6-2,5-7 | |
| ITF W60 Charleston | 10/02 19:40 | 25 | [253] Hailey Baptiste v Sophie Chang [372] | 6-4,6-3 | |
| ITF W60 Templeton | 09/26 18:25 | 26 | [407] Emina Bektas v Hailey Baptiste [261] | 7-5,4-6,6-4 | |
| ITF W60 Templeton | 09/24 20:10 | 25 | [397] Marcela Zacarias v Hailey Baptiste [261] | 5-7,7-6,2-6 | |
| US Open - ženy | 08/22 17:40 | 45 | [268] Hailey Baptiste v Harriet Dart [140] | 5-7,4-6 | |
| US Open - ženy | 08/20 16:40 | 44 | [198] Anna Bondar v Hailey Baptiste [268] | 3-6,1-6 | |
| WTA Washington | 08/01 01:00 | 26 | [49] Kristina Mladenovic v Hailey Baptiste [283] | 6-4,4-6,6-3 | |
| WTA Washington | 07/30 22:15 | 25 | [283] Hailey Baptiste v Madison Keys [17] | 7-6,6-2 | |
| ITF W60 Berkeley | 07/19 00:00 | 26 | [290] Hailey Baptiste v Caroline Dolehide [256] | 4-6,4-6 |
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.