Stadium: Court 3 Round: 25 Ground: Clay
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/23 16:30 | Jule Niemeier v Cao, Siqi | 6-4,6-1 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/16 13:30 | Tatiana Pieri v Cao, Siqi | 6-2,4-6,7-5 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/10 12:00 | Martina Colmegna v Cao, Siqi | 6-2,6-0 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/09 12:00 | Rakic, Radina v Cao, Siqi | 1-6,6-7 |
| Sofia, Singles W-WITF-BUL-01A | 2018/09/03 10:25 | Pribylova, Anastasia v Cao, Siqi | 7-6,6-3 |
| Sofia, Singles W-WITF-BUL-01A | 2018/09/02 11:00 | Cao, Siqi v Perper, Alexandra | 4-6,6-2,7-6 |
| ITF Women Guiyang | 2018/08/14 03:45 | Cao, Siqi v Fang Ying Xun | 2-6,2-6 |
| ITF Women Guiyang | 2018/08/13 03:55 | Cao, Siqi v Yanni Liu | 6-4,6-4 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/25 15:55 | Carson Branstine v Lena Papadakis | 1-6,0-6 |
| Quebec City, Canada | 2018/09/08 15:30 | Marie Bouzkova v Carson Branstine | 6-2,7-5 |
| Vancouver, Singles W-WITF-CAN-01A | 2018/08/14 17:00 | Carson Branstine v Giuliana Olmos | 1-6,0-6 |
| Vancouver, Singles W-WITF-CAN-01A | 2018/08/13 18:35 | Priscilla Hon v Carson Branstine | 6-2,6-7,1-6 |
| ITF Women Vancouver Qual | 2018/08/12 23:30 | Nefedova, Anastasia Evgenyevna v Carson Branstine | 4-6,6-3,2-6 |
| WTA Montreal Qual | 2018/08/04 22:25 | Monica Puig v Carson Branstine | 6-3,6-3 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/15 07:00 | Raluca Georgiana Serban v Carson Branstine | 6-4,6-3 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/13 08:45 | Riya Bhatia v Carson Branstine | 7-5,6-7,4-6 |