| UTR Pro Carrara | 2023/09/24 00:30 | Sam Ryan Ziegann v Sam Oster | 6-4,6-3 |
| UTR Pro Carrara | 2023/08/15 00:30 | Sam Ryan Ziegann v Sam Oster | 6-1,7-5 |
| UTR Pro Carrara | 2023/08/07 23:00 | Sam Oster v Sam Ryan Ziegann | 6-4,4-6,6-7 |
| UTR Pro Tennis Series - Carrara | 2021/10/16 03:30 | Sam Ryan Ziegann v Sam Oster | 6-1,6-1 |
| UTR Pro Tennis Series - Brisbane | 2021/07/29 00:30 | Sam Ryan Ziegann v Sam Oster | 1-3 |