Stadium: Court 5 Round: 19 Ground: Hardcourt outdoor
| ITF M15 Tauranga | 2022/12/20 21:00 | Daisuke Sumizawa v Derek Pham | 4-6,1-6 |
| Challenger Burnie | 2023/01/29 03:55 | Daisuke Sumizawa v Zak Talic | 6-2,6-4 |
| Challenger Noumea | 2023/01/02 02:05 | Daisuke Sumizawa v Jeremy Jin | 7-6,3-6,5-7 |
| ITF M15 Tauranga | 2022/12/20 21:00 | Daisuke Sumizawa v Derek Pham | 4-6,1-6 |
| ITF M15 Tauranga | 2022/12/19 21:00 | Daisuke Sumizawa v Finn Reynolds | 6-2,1-6,6-3 |
| ITF M15 Wellington | 2022/12/16 05:45 | Ajeet Rai v Daisuke Sumizawa | 6-3,5-7,6-1 |
| ITF M15 Wellington | 2022/12/16 02:25 | Corban Crowther v Daisuke Sumizawa | 4-6,1-6 |
| ITF M15 Wellington | 2022/12/14 01:05 | Rob Reynolds v Daisuke Sumizawa | 6-4,5-7,1-6 |
| Challenger Yokkaichi | 2022/11/20 01:00 | Daisuke Sumizawa v Yuki Mochizuki | 2-6,7-5,3-6 |
| Challenger Burnie | 2023/01/29 03:15 | Rhys Searant v Derek Pham | 3-6,3-6 |
| ITF M15 Jakarta | 2023/01/25 08:05 | Derek Pham v Sidharth Rawat | 6-7,5-7 |
| ITF M15 Jakarta | 2023/01/24 05:20 | Derek Pham v Michael Mathayomchand | 6-0,6-2 |
| ITF M15 Jakarta - selejtezők | 2023/01/23 02:30 | Derek Pham v Winter Meagher | 6-1,6-1 |
| ITF M15 Jakarta | 2023/01/18 02:00 | Thomas Fancutt v Derek Pham | 7-5,6-2 |
| ITF M15 Jakarta | 2023/01/17 06:30 | Derek Pham v Mitsuki Wei Kang Leong | 4-6,6-3,10-7 |
| ITF M15 Jakarta | 2023/01/16 02:30 | Derek Pham v Winter Meagher | 6-3,6-2 |
| Ausztrál Open | 2023/01/09 01:35 | Derek Pham v Peter Gojowczyk | 2-6,2-6 |