[147] Kristie Ahn 7-6,3-6,7-9 Marta Kostyuk [135] 2018-06-27 14:05
Stadium: Court 11 Round: 45 Ground: Grass
Home History
| Wimbledon Women Qual | 2018/06/26 13:30 | Daniela Seguel v Kristie Ahn | 1-6,3-6 |
| WTA Birmingham Qual | 2018/06/17 10:00 | Kristie Ahn v Jennifer Brady | 3-6,6-7 |
| WTA Birmingham Qual | 2018/06/16 10:00 | Fanny Stollar v Kristie Ahn | 2-6,6-7 |
| WTA Nottingham | 2018/06/11 13:35 | Denisa Allertova v Kristie Ahn | 6-3,6-1 |
| ITF Women Surbiton | 2018/06/08 14:55 | Kristie Ahn v Alison Riske-Amritraj | 0-6,4-6 |
| ITF Women Surbiton | 2018/06/06 13:20 | Kristie Ahn v Danielle Lao | 4-6,6-2,6-2 |
| ITF Women Surbiton | 2018/06/04 12:55 | Kristie Ahn v Dayana Yastremska | 7-5,6-4 |
| French Open Women Qual | 2018/05/23 08:00 | Bibiane Schoofs v Kristie Ahn | 7-6,2-6,6-3 |
Away History
| Wimbledon Women Qual | 2018/06/26 14:05 | Lauren Davis v Marta Kostyuk | 3-6,3-6 |
| WTA Mallorca | 2018/06/19 09:00 | Marta Kostyuk v Lucie Safarova | 4-6,5-7 |
| WTA Bol | 2018/06/05 09:00 | Marta Kostyuk v Anna Karolina Schmiedlova | 5-7,2-6 |
| French Open Women Qual | 2018/05/24 08:00 | Marta Kostyuk v Martina Trevisan | 3-6,3-6 |
| French Open Women Qual | 2018/05/22 10:35 | Marta Kostyuk v Eri Hozumi | 6-4,4-6,6-4 |
| WTA Madrid | 2018/05/05 12:30 | Marta Kostyuk v Lara Arruabarrena | 3-6,6-4,2-6 |
| WTA Prague Qual | 2018/04/28 08:00 | Elena-Gabriela Ruse v Marta Kostyuk | 2-6,7-5,6-3 |
| WTA Stuttgart | 2018/04/26 12:55 | Marta Kostyuk v Caroline Garcia | 1-6,6-3,5-7 |