Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| Rancho Santa Fe, Ca, Singles W-ITF-USA-05A | 2019/02/19 20:05 | Sandra Samir v Katie Volynets | 2-6,6-2,3-6 |
| Newport Beach, USA | 2019/01/23 22:00 | Andreescu, Bianca Vanessa v Katie Volynets | 6-2,7-6 |
| Newport Beach, USA | 2019/01/22 18:00 | Osaka, Mari v Katie Volynets | 0-6,0-6 |
| Newport Beach, USA | 2019/01/21 18:00 | Guarachi Mathison, Alexa v Katie Volynets | 6-4,4-6,3-6 |
| ITF W25 Daytona Beach | 2019/01/16 16:15 | Ylena In-Albon v Katie Volynets | 6-4,6-1 |
| ITF W25 Daytona Beach | 2019/01/15 14:30 | Katie Volynets v Marine Partaud | 7-5,6-2 |
| ITF W25 Daytona Beach | 2019/01/14 16:00 | Hailey Baptiste v Katie Volynets | 6-0,6-7,4-10 |
| ITF Women Norman | 2018/11/17 16:00 | Katie Volynets v Maria Camila Osorio Serrano | 4-6,2-6 |
| Rancho Santa Fe, Ca, Singles W-ITF-USA-05A | 2019/02/19 22:50 | Caty McNally v Ahn, Kristie | 6-3,2-6,3-6 |
| Midland, Simples W-ITF-USA-03A | 2019/02/01 20:30 | Rebecca Peterson v Ahn, Kristie | 6-3,4-6,6-4 |
| Midland, Simples W-ITF-USA-03A | 2019/01/31 17:00 | Ahn, Kristie v Marie Bouzkova | 6-3,6-2 |
| Midland, Simples W-ITF-USA-03A | 2019/01/30 16:40 | Valeria Savinykh v Ahn, Kristie | 4-6,2-6 |
| Newport Beach, USA | 2019/01/23 18:00 | Rebecca Peterson v Ahn, Kristie | 6-4,6-4 |
| Newport Beach, USA | 2019/01/22 20:00 | Ahn, Kristie v Urszula Radwanska | 6-4,6-2 |
| Open d'Australie - Femmes | 2019/01/10 00:35 | Viktorija Golubic v Ahn, Kristie | 6-4,6-4 |
| Open d'Australie - Femmes | 2019/01/08 04:20 | Ahn, Kristie v Taylor, Gabriella | 6-1,6-1 |