| 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 Krejcikova 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 | |
| ITF Women Florence | 10/17 19:50 | 25 | Hailey Baptiste v Louisa Chirico | 3-6,6-4,6-7 |
Hailey Baptiste (born November 3, 2001) is an American professional tennis player. On 18 March 2024, she reached her best singles ranking of world No. 96. She has won one doubles title on the WTA Tour with one doubles title on the WTA Challenger Tour. She has also won four singles and three doubles titles on the ITF Women's Circuit.
On the junior tour, she reached a career-high ranking of No. 38 on January 29, 2018. She ended runner-up at the US Open junior doubles' tournament in 2018.
Baptiste made her WTA Tour main draw debut at her hometown tournament, the 2019 Citi Open in Washington, beating Grand Slam finalist and former top-ten player Madison Keys in the first round.
Baptiste made her World TeamTennis debut in 2020 with the Vegas Rollers as an alternate, later ending up on the roster for the New York Empire in the 2020 season at The Greenbrier.
She made her WTA 1000 debut at the 2021 Miami Open after reaching the main draw having received a wildcard for the qualifying competition.
She received a wildcard for the main draw at the 2023 Miami Open.
At the WTA 1000 Guadalajara Open, she defeated 16th seed Karolína Plíšková for the second time in the season having prevailed also earlier at the Washington Open.
Following her first round main-draw win as a qualifier at the 2024 Indian Wells Open, over fellow American qualifier Robin Montgomery, she reached the top 100 in the rankings on 18 March 2024. She received a wildcard for the main draw at the 2024 Miami Open.