Stadium: Court 10 Round: 44 Ground: Hardcourt outdoor
| ITF W15 Cancun | 2021/10/03 20:00 | Sofia Matiushova v Kariann Pierre-Louis | 0-6,0-6 |
| UTR Pro Tennis Series Florida Women | 2021/09/18 16:00 | Victoria Sasinka v Kariann Pierre-Louis | 6-4,1-0 |
| UTR Pro Tennis Series Florida Women | 2021/09/17 22:30 | Eva Elbaz v Kariann Pierre-Louis | 4-6,7-5,5-1 |
| UTR Pro Tennis Series Florida Women | 2021/09/16 18:00 | Brooke Pederson v Kariann Pierre-Louis | 2-6,3-6 |
| UTR Pro Tennis Series Florida Women | 2021/09/14 13:30 | Sophie Llewellyn v Kariann Pierre-Louis | 6-3,5-3 |
| UTR Pro Tennis Series Florida Women | 2021/09/13 16:30 | Kariann Pierre-Louis v Cheri Darley | 6-4,6-4 |
| ITF W15 Monastir | 2021/08/17 08:30 | Kariann Pierre-Louis v Asya Colombo | 6-0,2-6,8-10 |
| ITF W15 Monastir | 2021/08/16 16:00 | Brittany Collens v Kariann Pierre-Louis | 4-6,2-6 |
| ITF W15 Cancun | 2021/09/29 17:45 | Breana Stampfli v Louise Kwong | 1-6,7-6,1-6 |
| ITF W15 Tacarigua | 2019/05/23 21:00 | Breana Stampfli v Maileen Nuudi | 7-5,6-0 |
| ITF W15 Tacarigua | 2019/05/17 19:30 | Breana Stampfli v Lexie Stevens | 5-7,3-6 |
| ITF W15 Tacarigua | 2019/05/16 22:30 | Breana Stampfli v Anneliese Rose | 6-2,6-1 |
| ITF W15 Tacarigua | 2019/05/15 23:55 | Maria Tanasescu v Breana Stampfli | 6-3,6-7,1-6 |
| 2019 Fed Cup | 2019/04/19 15:00 | Danielle Andrea Thompson v Breana Stampfli | 6-7,5-7 |
| 2019 Fed Cup | 2019/04/18 15:00 | Breana Stampfli v Chloe Weekes | 6-0,6-1 |
| 2018 Fed Cup | 2018/07/21 16:05 | Natalie G E Sanchez v Breana Stampfli | 1-6,2-6 |