| Pan American Games Women | 2019/08/10 22:40 | Rios, Daniely v Kumahara, Caroline | W | 1-3 |
| Pan American Games Women | 2019/08/10 16:00 | Wu, Yue v Kumahara, Caroline | L | 3-1 |
| Pan American Games Women | 2019/08/09 23:00 | Paulina Vega v Kumahara, Caroline | W | 0-3 |
| Pan American Games Women | 2019/08/08 22:45 | Medina, Paula v Kumahara, Caroline | W | 0-3 |
| Croatia Open Women | 2019/05/16 08:00 | Kumahara, Caroline v Mateja Jeger | W | 4-1 |
| Croatia Open Women | 2019/05/15 10:20 | Vorobeva, Olga v Kumahara, Caroline | W | 2-3 |
| Croatia Open Women | 2019/05/14 10:20 | Kumahara, Caroline v Ece Harac | W | 3-2 |
| Slovenia Open Women | 2019/05/10 09:30 | Kumahara, Caroline v Ng, Wing Nam | L | 0-4 |
| Paraguay Open U21 Women | 2019/09/10 15:10 | Doval, Ilka v Kaizoji, Camila | W | 2-3 |