Stadium: Court 12 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Aktobe - Doubles Hommes | 2023/03/10 06:00 | Bertuccioli F / de Rossi M v Kawachi/Okamura | 7-5,6-7,10-5 |
| ITF - M15 Aktobe - Doubles Hommes | 2023/03/08 11:40 | Batyutenko/Khairutdinov v Kawachi/Okamura | 6-4,2-6,5-10 |
| ITF - M15 Aktobe - Doubles Hommes | 2023/03/03 09:15 | Kawachi/Okamura v Liaonenka/Zgirovsky | 4-6,4-6 |
| ITF - M15 Aktobe - Doubles Hommes | 2023/03/02 10:50 | Kawachi/Okamura v Catini/Noce | 7-5,6-1 |
| ITF M15 Daegu MD | 2022/09/01 07:55 | Kim D / Lee S-R v Kawachi/Okamura | 6-3,6-1 |
| ITF M15 Daegu MD | 2022/09/01 06:15 | Kim D / Lee S-R v Kawachi/Okamura | 2-6,3-6 |
| Hua Hin, Doubles M-ITF-THA-07A | 2019/08/22 07:00 | Kawachi/Okamura v Moritani, Soichiro / Suzuki, Ko | 4-6,6-3,9-11 |
| Hua Hin, Doubles M-ITF-THA-07A | 2019/08/20 07:45 | Kawachi/Okamura v Kumthonkittikul W / Sookton-Eng C | 7-5,6-3 |