Stadium: Court 8 Round: 45 Ground: Clay
| ITF Kuwait F2 | 2018/11/10 07:45 | Peter Heller v Daisuke Sumizawa | 6-3,6-4 |
| ITF Kuwait F2 | 2018/11/09 07:15 | Ergi Kirkin v Daisuke Sumizawa | 2-6,3-6 |
| ITF Kuwait F2 | 2018/11/07 08:20 | Daisuke Sumizawa v Jose Fco. Vidal Azorin | 7-6,6-3 |
| ITF Kuwait F2 | 2018/11/05 08:45 | Daisuke Sumizawa v Marc Dijkhuizen | 3-6,6-4,6-2 |
| ITF Kuwait F2 | 2018/11/04 08:20 | Mousa Alkotop v Daisuke Sumizawa | 4-6,6-7 |
| ITF Kuwait F2 | 2018/11/03 11:00 | Francis Pare v Daisuke Sumizawa | 3-6,1-6 |
| ITF Thailand F6 | 2018/10/09 07:45 | Tsung-Hao Huang v Daisuke Sumizawa | 6-2,6-3 |
| ITF Thailand F6 | 2018/10/08 02:30 | Natthasith Kunsuwan v Daisuke Sumizawa | 2-6,2-6 |
| ITF Australia F7 | 2018/09/29 03:45 | Zac Osborne v Masayoshi Ono | 4-6,3-6 |
| ITF Australia F7 | 2018/09/29 00:00 | Zac Osborne v John Hu | 7-6,6-1 |
| ITF Australia F6 | 2018/09/24 02:05 | Masayoshi Ono v Zac Osborne | 6-2,6-1 |
| ITF Australia F6 | 2018/09/23 00:30 | Zac Osborne v Patrick Kotan | 4-6,6-3,7-5 |
| ITF Australia F5 | 2018/09/14 23:00 | Zac Osborne v Mason Naumovski | 4-6,6-3,6-7 |
| ITF Australia F4 | 2018/03/27 03:20 | Blake Ellis v Zac Osborne | 6-4,6-4 |
| ITF Australia F4 Qual | 2018/03/26 00:00 | Zac Osborne v Jackson B-Tennant | 6-1,6-0 |
| ITF Australia F4 Qual | 2018/03/25 00:30 | Zac Osborne v Marlino Pascual | 6-3,6-4 |