Stadium: Court 1 Round: 44
| ITF Thailand F2 | 2018/08/26 07:00 | Phongsapak Kerdlaphee v Sam Ryan Ziegann | 6-2,7-5 |
| ITF Chinese Taipei F2 Qual | 2018/07/23 03:00 | Sam Ryan Ziegann v Pak Long Yeung | 4-6,1-6 |
| ITF Chinese Taipei F2 Qual | 2018/07/22 02:00 | Sam Ryan Ziegann v Jia-Hong Shen | 6-1,6-1 |
| ITF Chinese Taipei F1 Qual | 2018/07/15 02:00 | Sam Ryan Ziegann v Fei Yun Liao | 6-7,3-6 |
| ITF Hong Kong F2 Qual | 2018/06/30 04:00 | Aaron Addison v Sam Ryan Ziegann | 6-1,7-6 |
| ITF Hong Kong F1 Qual | 2018/06/23 02:00 | Wai Yu Kai v Sam Ryan Ziegann | 6-3,6-3 |
| ITF Guam F1 | 2018/06/21 01:30 | Sam Ryan Ziegann v Rimpei Kawakami | 4-6,3-6 |
| ITF Vietnam F3 | 2018/05/12 03:00 | Sam Ryan Ziegann v Paramveer Singh Bajwa | 2-6,2-6 |
| ITF Japan F8 | 2018/06/11 00:30 | Takuya Kumasaka v Yuki Matsuo | 2-6,4-6 |
| ITF Japan F8 | 2018/06/09 01:00 | Takuya Kumasaka v Kento Tagashira | 7-6,6-0 |
| ITF Japan F7 | 2018/06/05 01:00 | Takuya Kumasaka v Gengo Kikuchi | 6-3,3-6,4-6 |
| ITF Japan F6 Qual | 2018/04/09 01:00 | Kaito Uesugi v Takuya Kumasaka | 6-3,6-1 |
| ITF Japan F6 Qual | 2018/04/08 01:00 | Takuya Kumasaka v David Barclay | 5-7,6-3,6-1 |
| ITF Japan F4 | 2018/03/24 00:00 | Takuya Kumasaka v Masaki Sasai | 3-6,6-4,3-6 |
| ITF Japan F3 | 2018/03/17 00:30 | Ryohei Tagata v Takuya Kumasaka | 6-0,6-2 |
| ITF Japan F1 | 2018/03/08 07:20 | Takuya Kumasaka v Wishaya Trongcharoenchaikul | 6-1,0-6,3-6 |