[145] Kristie Ahn 6-7,4-6 Dayana Yastremska [98] 2018-09-06 15:00
Stadium: I Round: 26 Ground: Hardcourt outdoor
Head to Head
| ITF Women Surbiton | 2018/06/04 12:55 | Kristie Ahn v Dayana Yastremska | 7-5,6-4 |
Home History
| WTA Chicago | 2018/09/05 15:00 | Eugenie Bouchard v Kristie Ahn | 6-7,4-6 |
| WTA Chicago | 2018/09/03 22:40 | Kristie Ahn v Quinn Gleason | 2-6,6-4,7-5 |
| WTA Chicago | 2018/09/02 20:30 | Kristie Ahn v Michaela Gordon | 6-0,6-2 |
| US Open Women | 2018/08/23 16:40 | Ons Jabeur v Kristie Ahn | 6-1,6-2 |
| US Open Women | 2018/08/21 19:50 | Kristie Ahn v Katarina Zavatska | 6-4,6-3 |
| ITF Women Landisville | 2018/08/11 16:45 | Jessica Pegula v Kristie Ahn | 7-6,6-7,4-6 |
| ITF Women Landisville | 2018/08/10 16:35 | Kristie Ahn v Kimberly Birrell | 4-6,6-4,6-4 |
| ITF Women Landisville | 2018/08/08 14:00 | Naomi Broady v Kristie Ahn | 2-6,6-7 |
Away History
| 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 |
| ITF Women Budapest | 2018/07/14 10:20 | Ekaterina Alexandrova v Dayana Yastremska | 6-2,2-6,6-4 |