| WTA Charleston | 04/02 16:40 | 19 | [280] Hailey Baptiste v Heather Watson [147] | 7-5,6-3 | |
| WTA Charleston | 04/01 20:45 | 14 | [280] Hailey Baptiste v Marcela Zacarias [196] | 6-2,6-1 | |
| WTA San Luis Potosí | 03/28 21:30 | 25 | [280] Hailey Baptiste v Leolia Jeanjean [109] | 2-6,1-6 | |
| WTA San Luis Potosí | 03/27 19:50 | 19 | [280] Hailey Baptiste v Quinn Gleason [194] | 6-1,6-4 | |
| WTA Miami | 03/21 22:30 | 23 | [116] Viktorija Golubic v Hailey Baptiste [280] | 7-6,6-1 | |
| ITF W25 Boca Raton | 03/08 17:05 | 25 | [153] Maria Lourdes Carle v Hailey Baptiste [270] | 7-6,6-0 | |
| WTA Austin | 02/25 19:00 | 45 | [141] Katie Boulter v Hailey Baptiste [230] | 7-5,6-0 | |
| ITF W25 Santo Domingo | 02/18 15:30 | 28 | [233] Hailey Baptiste v Carole Monnet [221] | 6-7,2-6 | |
| ITF W25 Santo Domingo | 02/17 13:30 | 27 | [481] Sofia Sewing v Hailey Baptiste [233] | 3-6,4-6 | |
| ITF W25 Santo Domingo | 02/16 17:15 | 26 | Lauren Proctor v Hailey Baptiste | 3-6,2-6 | |
| ITF W25 Santo Domingo | 02/15 17:10 | 25 | Jenna Defalco v Hailey Baptiste | 3-6,2-6 | |
| ITF W60 Orlando | 02/09 15:30 | 26 | [181] Ashlyn Krueger v Hailey Baptiste [237] | 6-3,6-1 | |
| ITF W60 Orlando | 02/08 15:00 | 25 | [237] Hailey Baptiste v Haruna Arakawa [403] | 6-4,7-6 | |
| WTA Cali | 01/31 17:50 | 25 | [229] Hailey Baptiste v Elvina Kalieva [251] | 7-5,6-7,4-6 | |
| ITF W60 Vero Beach | 01/19 16:00 | 26 | [156] Hailey Baptiste v Emiliana Arango [394] | 2-6,3-6 | |
| ITF W60 Vero Beach | 01/18 15:50 | 25 | Hailey Baptiste v Kaitlin Quevedo | 7-6,6-3 | |
| Australian Open - ženy | 01/09 23:00 | 14 | [157] Hailey Baptiste v Yuriko Miyazaki [178] | 4-6,5-7 | |
| ITF W60 Canberra | 01/06 01:00 | 28 | [136] Katie Boulter v Hailey Baptiste [166] | 6-2,6-2 | |
| ITF W60 Canberra | 01/05 00:45 | 27 | [233] Astra Sharma v Hailey Baptiste [166] | 1-6,3-6 | |
| ITF W60 Canberra | 01/04 02:25 | 26 | [157] Mirjam Bjorklund v Hailey Baptiste [166] | 6-3,5-7,2-6 | |
| ITF W60 Canberra | 01/03 01:20 | 25 | [166] Hailey Baptiste v Erika Andreeva [135] | 6-3,7-5 | |
| W60 Rio de Janeiro | 12/01 12:55 | 27 | [174] Hailey Baptiste v Irina Khromacheva [237] | 6-4,4-6,1-6 | |
| W60 Rio de Janeiro | 11/30 12:50 | 26 | [174] Hailey Baptiste v Martina Capurro Taborda [443] | 7-5,6-4 | |
| W60 Rio de Janeiro | 11/29 13:50 | 25 | Hailey Baptiste v Bianca Bernardes | 6-0,6-0 | |
| WTA Montevideo | 11/25 21:35 | 27 | [158] Diana Shnaider v Hailey Baptiste [176] | 6-4,6-2 | |
| WTA Montevideo | 11/24 21:50 | 26 | [270] Julia Riera v Hailey Baptiste [176] | 1-6,6-7 | |
| WTA Montevideo | 11/23 19:45 | 25 | [176] Hailey Baptiste v Laura Pigossi [118] | 3-6,7-6,6-1 | |
| WTA Buenos Aires | 11/17 13:30 | 26 | [160] Maria Lourdes Carle v Hailey Baptiste [182] | 6-4,6-0 | |
| WTA Buenos Aires | 11/15 15:15 | 25 | [146] Harmony Tan v Hailey Baptiste [182] | Retired | |
| US Open - ženy | 08/23 23:00 | 14 | [88] Viktorija Golubic v Hailey Baptiste [157] | 6-4,6-4 |
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.