 Australia: M25 Canberra 2 - Doubles - Main |
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| Semi-finals | Puttergill C./Sweeny D. | Ichikawa T./Sumizawa D. | 0:2 (1:6, 2:6) | details | 25.03.2023 |
| Quarter-finals | Ichikawa T./Sumizawa D. | Beale J./Vujic S. | 2:1 (3:6, 6:3, 10:8) | details | 24.03.2023 |
| 1/8-finals | Ichikawa T./Sumizawa D. | Delaney Ja./Tajima N. | 2:0 (6:4, 6:4) | details | 22.03.2023 |
| Australia: M25 Canberra - Doubles - Main |
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| Quarter-finals | Saitoh K./Sumizawa D. | Han Seon Yong/Ichikawa T. | 2:0 (6:4, 7:63) | details | 16.03.2023 |
| 1/8-finals | Han Seon Yong/Ichikawa T. | Romios M. C./Walkin B. | 2:0 (6:4, 6:4) | details | 14.03.2023 |
 Tunisia: M15 Monastir 6 - Doubles - Main |
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| 1/8-finals | Ichikawa T./Tajima N. | Andaloro F./Roncadelli F. | 1:2 (6:2, 3:6, 3:10) | details | 09.02.2023 |
| Tunisia: M15 Monastir 5 - Doubles - Main |
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| Semi-finals | Ichikawa T./Tajima N. | Mazza M./Picchione A. | 1:2 (66:7, 6:4, 7:10) | details | 03.02.2023 |
| Quarter-finals | Ichikawa T./Tajima N. | Albrecht P. A./Salton D. | 2:0 (6:2, 6:2) | details | 02.02.2023 |
| 1/8-finals | Ichikawa T./Tajima N. | Bejenaru A. M./Shumsky A. | WO. | details | 01.02.2023 |
 Indonesia: M15 Jakarta 2 - Doubles - Main |
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| 1/8-finals | Ichikawa T./Isomura K. | Saitoh K./Tajima N. | 1:2 (5:7, 6:2, 10:12) | details | 24.01.2023 |
 Japan: Yokkaichi - Doubles - Main |
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| 1/8-finals | Ionel N. D./Jianu F. C. | Ichikawa T./Matsuda K. | 2:0 (6:1, 7:65) | details | 22.11.2022 |
| Japan: Kobe - Doubles - Main |
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| Quarter-finals | Ichikawa T./Watanabe S. | Hazawa S./Shimizu Y. | 0:2 (4:6, 2:6) | details | 17.11.2022 |
| 1/8-finals | Ichikawa T./Watanabe S. | Sweeny D./Tu L. | 2:0 (6:3, 6:3) | details | 16.11.2022 |
| Japan: Yokohama - Doubles - Main |
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| Semi-finals | Ichikawa T./Mochizuki Y. | Cornea V. V./Gonzales R. | 0:2 (65:7, 62:7) | details | 04.11.2022 |
| Quarter-finals | Kadhe A./Ramanathan R. | Ichikawa T./Mochizuki Y. | 1:2 (7:65, 2:6, 10:12) | details | 03.11.2022 |
| 1/8-finals | Kirkin E./Mridha J. | Ichikawa T./Mochizuki Y. | 1:2 (7:5, 5:7, 6:10) | details | 02.11.2022 |
| Japan: M25 Kashiwa - Doubles - Main |
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| Semi-finals | Ichikawa T./Suksumrarn T. | Tajima N./Watanabe S. | 0:2 (64:7, 2:6) | details | 30.09.2022 |
| Quarter-finals | Kawachi K./Kawakami R. | Ichikawa T./Suksumrarn T. | 1:2 (2:6, 6:2, 6:10) | details | 29.09.2022 |
| Japan: M25 Sapporo 2 - Doubles - Main |
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| 1/8-finals | Ichikawa T./Ito T. | Kono Y./Kusuhara Y. | 0:2 (2:6, 61:7) | details | 08.09.2022 |
| Japan: M25 Sapporo - Doubles - Main |
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| Quarter-finals | Niki T./Takeru Y. | Ichikawa T./Takeuchi K. | 2:1 (2:6, 7:64, 11:9) | details | 02.09.2022 |
| 1/8-finals | Adachi T./Yamaguchi S. | Ichikawa T./Takeuchi K. | 0:2 (1:6, 0:6) | details | 02.09.2022 |
 Mexico: M15 Cancun 11 - Doubles - Main |
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| Quarter-finals | Ichikawa T./Watanabe S. | Andrade A./Kiger M. | 0:2 (67:7, 2:6) | details | 18.08.2022 |
| 1/8-finals | Ichikawa T./Watanabe S. | Pena E./Santamaria F. | 2:0 (6:1, 6:3) | details | 16.08.2022 |
| Mexico: M15 Cancun 10 - Doubles - Main |
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| Final | Ichikawa T./Watanabe S. | Walton A./Zink T. | 2:1 (1:6, 7:69, 10:8) | details | 13.08.2022 |
| Semi-finals | Ichikawa T./Watanabe S. | Angele J. F./Joncour R. | 2:0 (6:1, 6:2) | details | 12.08.2022 |
| Quarter-finals | Ichikawa T./Watanabe S. | Ansari A./Wang C. | 2:0 (6:4, 6:4) | details | 12.08.2022 |
| 1/8-finals | Ichikawa T./Watanabe S. | Lopez Villasenor G./Rubio Fierros A. F. | 2:0 (7:6, 7:5) | details | 09.08.2022 |
 USA: M25 Decatur, IL - Doubles - Main |
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| Final | Goldhoff G./Zink T. | Ichikawa T./Watanabe S. | 2:0 (6:3, 6:4) | details | 07.08.2022 |
