Stadium: Ct 2 Round: 62 Ground: Clay
| ITF Thailand F3 | 2018/09/02 02:00 | Sam Ryan Ziegann v Krittin Koaykul | 6-7,1-6 |
| 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 |