Stadium: Court 1 Round: 14 Ground: Hardcourt indoor
| ITF W60 Las Vegas | 2019/11/06 19:35 | Katherine Sebov v Quinn Gleason | 6-4,6-4 |
| WTA Chicago | 2021/08/22 19:00 | Marta Kostyuk v Katherine Sebov | 6-0,6-3 |
| WTA Montreal | 2021/08/07 18:10 | Heather Watson v Katherine Sebov | 6-0,6-3 |
| ITF W25 Pelham | 2021/05/19 20:55 | Katherine Sebov v Arianne Hartono | 2-6,2-6 |
| ITF W100 Bonita Springs | 2021/05/10 18:55 | Katherine Sebov v Kayla Day | 3-6,4-6 |
| ITF W100 Charleston | 2021/05/04 13:55 | Katherine Sebov v Aldila Sutjiadi | 0-6,6-4,6-10 |
| ITF W100 Charleston | 2021/05/03 16:00 | Katherine Sebov v Jantje Tilbuerger | 6-0,6-3 |
| ITF W60 Charlottesville | 2021/04/26 15:40 | Katherine Sebov v Maria Mateas | 6-7,4-6 |
| WTA Charleston | 2021/04/04 14:00 | Magdalena Frech v Katherine Sebov | 7-5,6-1 |
| WTA Chicago | 2021/08/23 19:55 | Marketa Vondrousova v Quinn Gleason | 6-2,6-0 |
| WTA Chicago | 2021/08/22 18:30 | Quinn Gleason v Makoto Ninomiya | 6-3,6-1 |
| WTA Chicago Qual | 2021/08/21 22:55 | Anastasia Potapova v Quinn Gleason | 1-6,6-2,3-6 |
| WTA Charleston | 2021/07/26 18:00 | Alexa Glatch v Quinn Gleason | 6-2,6-2 |
| WTA Palermo | 2021/07/17 19:10 | Martina Di Giuseppe v Quinn Gleason | 6-1,6-3 |
| ITF W60 Charleston | 2021/06/24 15:50 | Quinn Gleason v Sofia Shapatava | 6-0,6-7,2-6 |
| ITF W60 Charleston | 2021/06/23 17:45 | Conny Perrin v Quinn Gleason | 4-6,6-7 |
| ITF W60 Charleston | 2021/06/22 13:50 | Quinn Gleason v Jantje Tilbuerger | 6-2,4-6,10-4 |