| ITF W60 Berkeley | 07/17 17:00 | 25 | [258] Katie Swan v Hailey Baptiste [290] | 5-7,3-6 | |
| ITF W60 Honolulu | 07/10 23:30 | 25 | [288] Hailey Baptiste v Usue M. Arconada [214] | 3-6,2-6 | |
| ITF W25 Denver | 06/19 18:45 | 25 | Hailey Baptiste v Sophia Whittle | 2-6,5-7 | |
| ITF W25 Sumter | 06/16 17:00 | 29 | Victoria Duval v Hailey Baptiste | 2-6,5-7 | |
| ITF W25 Sumter | 06/15 14:00 | 28 | Natasha Subhash v Hailey Baptiste | 3-6,1-6 | |
| ITF W25 Sumter | 06/14 14:00 | 27 | [440] Marcela Zacarias v Hailey Baptiste [333] | 6-2,3-6,6-7 | |
| ITF W25 Sumter | 06/13 14:25 | 26 | [493] Hayley Carter v Hailey Baptiste [333] | 6-4,2-6,4-6 | |
| ITF W25 Sumter | 06/12 14:00 | 25 | Andrea R Villarreal v Hailey Baptiste | 1-6,5-7 | |
| ITF W25 Osprey | 04/25 14:30 | 26 | [323] Hailey Baptiste v Gaia Sanesi [423] | 6-3,3-6,4-6 | |
| ITF W25 Osprey | 04/23 17:45 | 25 | Hailey Baptiste v Bianca Turati | 6-3,6-4 | |
| ITF W25 Pelham | 04/13 17:30 | 28 | [156] Barbora Krejčíková v Hailey Baptiste [335] | 3-6,6-3,6-4 | |
| ITF W25 Pelham | 04/12 15:00 | 27 | [166] Kurumi Nara v Hailey Baptiste [335] | 1-6,1-6 | |
| ITF W25 Pelham | 04/11 15:00 | 26 | Dasha Ivanova v Hailey Baptiste | 4-6,2-6 | |
| ITF W25 Pelham | 04/10 16:35 | 25 | [335] Hailey Baptiste v Lizette Cabrera [235] | 6-3,6-4 | |
| ITF W25 Pelham | 04/09 15:00 | 54 | [335] Hailey Baptiste v Gabriela Talaba [408] | 6-3,7-6 | |
| ITF W25 Pelham | 04/08 15:00 | 54 | Hailey Baptiste v Rhiann Newborn | 6-1,6-1 | |
| ITF W25 Plantation | 01/28 15:00 | 29 | [239] Anna Bondar v Hailey Baptiste [416] | 5-7,7-6,2-6 | |
| ITF W25 Plantation | 01/26 19:00 | 28 | [411] Hailey Baptiste v Maria C O Serrano [475] | 6-2,7-5 | |
| ITF W25 Plantation | 01/25 19:00 | 27 | [411] Hailey Baptiste v Ylena In-Albon [257] | 6-1,3-6,6-1 | |
| ITF W25 Plantation | 01/25 15:00 | 26 | [411] Hailey Baptiste v Louisa Chirico [381] | 7-6,6-4 | |
| ITF W25 Plantation | 01/23 18:20 | 25 | [284] Daniela Seguel v Hailey Baptiste [411] | 3-6,3-6 | |
| ITF W25 Plantation | 01/22 16:35 | 45 | [403] Irina Fetecau v Hailey Baptiste [411] | 1-6,4-6 | |
| ITF W25 Plantation | 01/21 15:00 | 45 | Ksenia Laskutova v Hailey Baptiste | 2-6,2-6 | |
| ITF W25 - Daytona Beach | 01/14 16:00 | 45 | Hailey Baptiste v Katie Volynets | 6-0,6-7,4-10 | |
| ITF Women Macon | 10/27 14:00 | 27 | Hailey Baptiste v Veronica C Royg | 4-6,4-6 | |
| ITF Women Macon | 10/25 13:30 | 26 | Ann Li v Hailey Baptiste | 4-6,4-6 | |
| ITF Women Macon | 10/24 16:15 | 25 | Hailey Baptiste v Asia Muhammad | 1-6,6-3,6-1 | |
| ITF Women Macon | 10/23 14:00 | 54 | Hailey Baptiste v Hanna Chang | 6-1,7-6 | |
| ITF Women Macon | 10/22 14:00 | 54 | Hailey Baptiste v Andie K. Daniell | 7-5,6-1 | |
| ITF Women Macon | 10/21 14:00 | 54 | Chanel Simmonds v Hailey Baptiste | 6-3,3-6,3-6 |
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.