| WTA Adelaide 2 | 01/11 07:45 | 25 | [51] Anhelina Kalinina v Sorana Cirstea [38] | 6-3,6-2 | |
| WTA Adelaide 2 | 01/10 23:30 | 25 | Sorana Cirstea v Tereza Martincová | Cancelled | |
| WTA Melbourne 2 | 01/06 00:00 | 26 | [78] Amanda Anisimova v Sorana Cirstea [39] | 6-4,6-1 | |
| WTA Melbourne 2 | 01/04 07:35 | 25 | [77] Varvara Gracheva v Sorana Cirstea [39] | 0-6,0-6 | |
| WTA Linec | 11/08 09:00 | 25 | Sorana Cirstea v Kamilla Rakhimova | Cancelled | |
| WTA Indian Wells | 10/10 19:10 | 25 | [40] Sorana Cirstea v Elina Svitolina [7] | 6-4,4-6,6-7 | |
| WTA Indian Wells | 10/08 18:00 | 24 | [40] Sorana Cirstea v Misaki Doi [109] | 6-2,6-3 | |
| WTA Ostrava | 09/20 16:00 | 25 | [37] Sorana Cirstea v Anett Kontaveit [30] | 4-6,4-6 | |
| WTA Portorož | 09/17 13:25 | 27 | [87] Jasmine Paolini v Sorana Cirstea [40] | 6-4,4-6,6-1 | |
| WTA Portorož | 09/16 14:15 | 26 | [61] Tereza Martincová v Sorana Cirstea [40] | 5-7,2-6 | |
| WTA Portorož | 09/13 16:35 | 25 | [59] Heather Watson v Sorana Cirstea [40] | 1-6,3-6 | |
| US Open - ženy | 09/02 22:25 | 24 | [43] Shelby Rogers v Sorana Cirstea [39] | 7-5,6-2 | |
| US Open - ženy | 08/31 21:55 | 23 | [39] Sorana Cirstea v Veronika Kudermetova [31] | 7-6,3-6,6-0 | |
| WTA Chicago | 08/23 21:10 | 25 | [38] Sorana Cirstea v Tereza Martincová [60] | 6-3,3-6,2-6 | |
| WTA Cincinnati | 08/16 17:30 | 24 | [65] Jil Teichmann v Sorana Cirstea [40] | 6-2,6-0 | |
| WTA Montreal | 08/11 01:25 | 25 | [40] Sorana Cirstea v Victoria Azarenka [15] | 2-6,2-6 | |
| WTA Montreal | 08/09 16:40 | 24 | [37] Alison Riske v Sorana Cirstea [40] | 3-6,4-6 | |
| Wimbledon - ženy | 07/03 12:00 | 25 | [45] Sorana Cirstea v Emma Raducanu [338] | 3-6,5-7 | |
| Wimbledon - ženy | 07/01 16:00 | 24 | [14] Victoria Azarenka v Sorana Cirstea [45] | 6-7,6-3,4-6 | |
| Wimbledon - ženy | 06/30 13:10 | 23 | [45] Sorana Cirstea v Samantha Murray Sharan [230] | 6-3,6-3 | |
| WTA Bad Homburg | 06/20 16:00 | 25 | [129] Andrea Petkovic v Sorana Cirstea [45] | 6-3,6-4 | |
| WTA Berlín | 06/15 15:10 | 25 | [13] Garbine Muguruza v Sorana Cirstea [45] | 6-3,6-2 | |
| French Open - ženy | 06/06 09:00 | 26 | [85] Tamara Zidansek v Sorana Cirstea [54] | 7-6,6-1 | |
| French Open - ženy | 06/04 14:30 | 25 | [54] Sorana Cirstea v Daria Kasatkina [37] | 6-3,6-2 | |
| French Open - ženy | 06/02 09:00 | 24 | [54] Sorana Cirstea v Martina Trevisan [97] | 6-4,3-6,6-4 | |
| French Open - ženy | 05/31 14:05 | 23 | [20] Johanna Konta v Sorana Cirstea [54] | 6-7,2-6 | |
| WTA Štrasburk | 05/29 13:00 | 29 | [61] Sorana Cirstea v Barbora Krejčíková [38] | 3-6,3-6 | |
| WTA Štrasburk | 05/28 12:00 | 28 | [61] Sorana Cirstea v Magda Linette [48] | 3-6,6-4,6-2 | |
| WTA Štrasburk | 05/28 08:00 | 27 | Bianca Andreescu v Sorana Cirstea | Walkover | |
| WTA Štrasburk | 05/27 09:00 | 26 | [61] Sorana Cirstea v Shuai Zhang [45] | 6-2,6-1 |