| Fed Cup, Groupe Mondial | 2018/07/21 16:30 | Roemer, Charlotte v Cartwright, Kerrie | 6-3,6-3 |
| Fed Cup, Groupe Mondial | 2018/07/20 16:10 | Brooks, Ashley v Cartwright, Kerrie | 0-6,0-6 |
| Billie Jean King Cup | 2018/07/18 16:25 | Noelia Zeballos v Cartwright, Kerrie | 0-6,3-6 |
| ITF Women Manchester Qual | 2018/06/10 11:05 | Cartwright, Kerrie v Jovanovski Petrovic, Bojana | 0-6,6-4,3-6 |
| ITF Women Osprey Qual | 2018/05/23 13:00 | Goncalves, Paula Cristina v Cartwright, Kerrie | 7-5,7-6 |
| ITF Women Osprey Qual | 2018/05/22 13:00 | Kourkina, Dasha v Cartwright, Kerrie | 0-6,4-6 |
| ITF Women Osprey Qual | 2018/05/21 14:00 | Arseneault, Ariana v Cartwright, Kerrie | 2-6,0-6 |
| ITF Women Tacarigua | 2018/05/09 16:20 | Fodor, Csilla v Cartwright, Kerrie | 7-6,1-6,7-5 |
| Fed Cup, Groupe Mondial | 2018/06/21 14:00 | Maria Jose Portillo Ramirez v Riley-Codrington, Tangia | 6-0,6-0 |