 Ethiopia: M25 Addis Ababa - Doubles - Main |
|---|
| 1/8-finals | Kawachi K./Okamura I. | Lock B./Lock C. | 0:2 (3:6, 4:6) | details | 21.05.2024 |
| Ethiopia: M15 Addis Ababa - Doubles - Main |
|---|
| 1/8-finals | Ganta S. K. R./Javia D. | Kawachi K./Okamura I. | 2:0 (7:67, 6:3) | details | 14.05.2024 |
 Israel: M25 Herzlia - Doubles - Main |
|---|
| Quarter-finals | Davis J./Jones B. | Kawachi K./Okamura I. | 2:0 (6:2, 6:2) | details | 10.08.2023 |
| 1/8-finals | Kawachi K./Okamura I. | Gray T./Xilas I. | 2:0 (6:2, 6:3) | details | 08.08.2023 |
| Israel: M15 Raanana - Doubles - Main |
|---|
| Semi-finals | Goldenberg L./Oliel Y. | Kawachi K./Okamura I. | 2:0 (6:2, 6:3) | details | 03.08.2023 |
| Quarter-finals | Ellouck R./Hasson J. | Kawachi K./Okamura I. | 1:2 (3:6, 7:5, 11:13) | details | 02.08.2023 |
| 1/8-finals | Ginat R./Zuckerman N. | Kawachi K./Okamura I. | 0:2 (2:6, 3:6) | details | 31.07.2023 |
 Kazakhstan: M15 Aktobe 2 - Doubles - Main |
|---|
| Semi-finals | Bertuccioli F./De Rossi M. | Kawachi K./Okamura I. | 2:1 (7:5, 62:7, 10:5) | details | 10.03.2023 |
| Quarter-finals | Dadabaev A./Ibrakhimov R. | Kawachi K./Okamura I. | 0:2 (3:6, 3:6) | details | 09.03.2023 |
| 1/8-finals | Batyutenko M./Khairutdinov A. | Kawachi K./Okamura I. | 1:2 (6:4, 2:6, 5:10) | details | 08.03.2023 |
| Kazakhstan: M15 Aktobe - Doubles - Main |
|---|
| Semi-finals | Kawachi K./Okamura I. | Liaonenka A./Zgirovsky A. | 0:2 (4:6, 4:6) | details | 03.03.2023 |
| Quarter-finals | Kawachi K./Okamura I. | Catini N./Noce G. M. | 2:0 (7:5, 6:1) | details | 02.03.2023 |
| 1/8-finals | Arutiunian E./Lomakin G. | Kawachi K./Okamura I. | 0:2 (61:7, 3:6) | details | 01.03.2023 |
 South Korea: M15 Daegu - Doubles - Main |
|---|
| Quarter-finals | Kim C./Lee J. M. | Kawachi K./Okamura I. | 2:0 (6:3, 6:1) | details | 01.09.2022 |
| 1/8-finals | Kim J./Lee H. | Kawachi K./Okamura I. | 0:2 (2:6, 3:6) | details | 01.09.2022 |
