[111] Mona Barthel 6-2,7-6 Dayana Yastremska [98] 2018-09-07 16:30
Stadium: Indoor 8 Round: 27 Ground: Hardcourt outdoor
Home History
| WTA Chicago | 2018/09/06 15:00 | Zarina Diyas v Mona Barthel | 2-6,6-3,3-6 |
| WTA Chicago | 2018/09/04 17:10 | Lin Zhu v Mona Barthel | 7-5,2-6,4-6 |
| US Open Women | 2018/08/28 21:20 | Marketa Vondrousova v Mona Barthel | 6-1,6-4 |
| US Open Women | 2018/08/24 15:00 | Mona Barthel v Francesca Di Lorenzo | 4-6,2-6 |
| US Open Women | 2018/08/23 15:00 | Mona Barthel v Silvia Soler-Espinosa | 4-6,7-6,6-0 |
| US Open Women | 2018/08/21 15:00 | Mona Barthel v Lucie Hradecka | 7-5,2-6,6-1 |
| ITF Women Prague | 2018/07/27 09:00 | Mona Barthel v Iga Swiatek | 2-6,3-6 |
| ITF Women Prague | 2018/07/26 09:00 | Mona Barthel v Nina Stojanovic | 6-3,6-4 |
Away History
| WTA Chicago | 2018/09/06 15:00 | Kristie Ahn v Dayana Yastremska | 6-7,4-6 |
| WTA Chicago | 2018/09/05 15:00 | Dayana Yastremska v Pauline Parmentier | 6-2,7-6 |
| US Open Women | 2018/08/27 19:35 | Karolina Muchova v Dayana Yastremska | 6-4,6-2 |
| WTA New Haven | 2018/08/22 02:15 | Dayana Yastremska v Julia Goerges | 4-6,6-3,4-6 |
| WTA New Haven | 2018/08/20 18:20 | Dayana Yastremska v Danielle Rose Collins | 6-0,6-3 |
| WTA New Haven | 2018/08/19 15:25 | Belinda Bencic v Dayana Yastremska | 6-7,6-7 |
| WTA New Haven | 2018/08/18 14:00 | Dayana Yastremska v Magda Linette | 7-6,7-6 |
| WTA New Haven Qual | 2018/08/17 14:00 | Dayana Yastremska v Bernarda Pera | 6-3,1-6,6-4 |