| WTA - Linz | 10/09 09:00 | 25 | [80] Sorana Cirstea v Jil Teichmann [158] | 4-6,2-6 | |
| WTA - Beijing | 09/30 14:40 | 24 | [57] Sorana Cirstea v Kiki Bertens [11] | 2-6,0-6 | |
| WTA - Beijing | 09/29 06:00 | 46 | [57] Sorana Cirstea v Polona Hercog [87] | 6-3,1-6,3-6 | |
| WTA - Beijing | 09/28 04:45 | 45 | [57] Sorana Cirstea v Varvara Lepchenko [105] | 4-6,6-4,7-6 | |
| WTA Wuhan | 09/21 06:40 | 45 | [52] Sorana Cirstea v Nicole Gibbs [129] | 4-6,5-7 | |
| US Open - Feminin | 08/31 02:15 | 24 | [22] Maria Sharapova v Sorana Cirstea [51] | 6-2,7-5 | |
| US Open - Feminin | 08/28 23:05 | 23 | [51] Sorana Cirstea v Alison Riske [75] | 6-3,3-6,7-5 | |
| WTA Cincinnati Qual | 08/12 19:15 | 45 | [54] Sorana Cirstea v Ajla Tomljanovic [60] | 3-6,2-6 | |
| WTA Cincinnati Qual | 08/12 01:25 | 44 | [54] Sorana Cirstea v Vania King [43] | 2-6,6-2,6-3 | |
| WTA - Montreal | 08/09 17:45 | 25 | [54] Sorana Cirstea v Venus Williams [14] | 6-7,4-6 | |
| WTA - Montreal | 08/07 15:00 | 24 | [69] Monica Niculescu v Sorana Cirstea [54] | 6-3,4-6,4-6 | |
| WTA - Bucuresti | 07/20 17:55 | 27 | [22] Anastasija Sevastova v Sorana Cirstea [57] | 3-6,6-3,6-2 | |
| WTA - Bucuresti | 07/19 20:20 | 26 | [166] Maryna Zanevska v Sorana Cirstea [57] | 2-6,5-7 | |
| WTA - Bucuresti | 07/17 13:55 | 25 | [195] Cagla Buyukakcay v Sorana Cirstea [57] | 3-6,3-6 | |
| Wimbledon - Feminin | 07/04 10:30 | 24 | [51] Sorana Cirstea v Evgeniya Rodina [120] | 6-1,3-6,3-6 | |
| Wimbledon - Feminin | 07/02 10:30 | 23 | [19] Magdalena Rybarikova v Sorana Cirstea [51] | 5-7,3-6 | |
| WTA - Eastbourne | 06/24 10:00 | 24 | [28] Anastasia Pavlyuchenkova v Sorana Cirstea [49] | 2-6,7-5,6-4 | |
| WTA Mallorca | 06/19 11:55 | 25 | [63] Johanna Larsson v Sorana Cirstea [49] | 2-6,6-3,6-2 | |
| French Open - Feminin | 05/29 09:00 | 23 | [25] Daria Gavrilova v Sorana Cirstea [49] | 4-6,7-6,6-3 | |
| WTA Nurnberg | 05/25 08:30 | 27 | [105] Alison Riske v Sorana Cirstea [45] | Retired | |
| WTA Nurnberg | 05/23 11:50 | 26 | [99] Madison Brengle v Sorana Cirstea [45] | 3-6,6-3,3-6 | |
| WTA Nurnberg | 05/22 12:50 | 25 | [107] Andrea Petkovic v Sorana Cirstea [45] | 6-2,6-7,6-7 | |
| WTA - Roma | 05/15 12:30 | 24 | [47] Danielle Collins v Sorana Cirstea [43] | 6-3,4-6,6-4 | |
| WTA - Madrid | 05/08 13:30 | 25 | [36] Sorana Cirstea v Daria Kasatkina [15] | 3-6,1-6 | |
| WTA - Madrid | 05/06 09:00 | 24 | [35] Sorana Cirstea v Katerina Siniakova [51] | 6-4,2-6,6-4 | |
| WTA - Istanbul | 04/24 09:00 | 25 | [83] Yulia Putintseva v Sorana Cirstea [34] | 0-6,6-1,6-0 | |
| WTA - Miami | 03/22 21:25 | 24 | [33] Sorana Cirstea v Su-Wei Hsieh [61] | 5-7,2-6 | |
| WTA - Indian Wells | 03/10 21:10 | 24 | Venus Williams v Sorana Cirstea | 6-3,6-4 | |
| WTA - Indian Wells | 03/08 19:00 | 23 | Monica Niculescu v Sorana Cirstea | 2-6,3-6 | |
| Tie Break Tens Women | 03/06 01:48 | - | Sorana Cirstea v Shuai Zhang | 6-1,1-6,0-0 |