[108] Katie Boulter 6-3,6-2 Lara Arruabarrena [76] 2018-09-29 05:25
Stadium: Court 4 Round: 46 Ground: Hardcourt outdoor
Home History
| WTA Beijing | 2018/09/28 03:00 | Alison Riske-Amritraj v Katie Boulter | 6-4,3-6,2-6 |
| US Open Women | 2018/08/21 15:00 | Katie Boulter v Naomi Broady | 4-6,6-4,1-6 |
| ITF Women Vancouver | 2018/08/17 17:00 | Heather Watson v Katie Boulter | 6-3,3-6,6-1 |
| ITF Women Vancouver | 2018/08/16 19:30 | Anna Kalinskaya v Katie Boulter | 5-7,2-6 |
| ITF Women Vancouver | 2018/08/14 19:30 | Francoise Abanda v Katie Boulter | 6-1,3-6,2-6 |
| WTA Montreal | 2018/08/06 19:10 | Lesia Tsurenko v Katie Boulter | 6-4,6-2 |
| WTA Montreal Qual | 2018/08/05 18:45 | Katie Boulter v Leylah Annie Fernandez | 2-6,6-3,6-4 |
| WTA Washington | 2018/08/02 01:00 | Allie Kiick v Katie Boulter | 6-4,5-7,6-1 |
Away History
| WTA Beijing | 2018/09/28 03:00 | Caroline Dolehide v Lara Arruabarrena | 6-4,4-6,4-6 |
| WTA Wuhan | 2018/09/21 04:45 | Vania King v Lara Arruabarrena | 6-1,6-0 |
| WTA Seoul | 2018/09/19 06:45 | Jelena Ostapenko v Lara Arruabarrena | 6-3,6-3 |
| US Open Women | 2018/08/29 15:00 | Barbora Strycova v Lara Arruabarrena | 6-0,6-1 |
| US Open Women | 2018/08/27 21:05 | Kateryna Baindl v Lara Arruabarrena | 0-6,3-6 |
| WTA New Haven Qual | 2018/08/17 16:25 | Andrea Petkovic v Lara Arruabarrena | 6-1,6-2 |
| WTA Cincinnati Qual | 2018/08/11 21:05 | Camila Giorgi v Lara Arruabarrena | 6-3,6-4 |
| WTA Gstaad | 2018/07/16 12:25 | Lara Arruabarrena v Marketa Vondrousova | 3-6,3-6 |