Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Cancun | 2019/08/19 14:30 | Ma, Jiaxi v Sam Ryan Ziegann | 3-6,6-3,10-6 |
| ITF M15 Cancun | 2019/08/19 20:00 | Reyes, Nicholas Alexander v Ma, Jiaxi | 2-6,6-3,10-6 |
| ITF M15 Cancun | 2019/08/19 14:30 | Ma, Jiaxi v Sam Ryan Ziegann | 3-6,6-3,10-6 |
| ITF M15 Cancun | 2019/08/19 14:30 | Ma, Jiaxi v Sam Ryan Ziegann | 3-6,6-3,10-6 |
| ITF M15 Anseong | 2019/06/25 01:00 | Ha Yeon, Sung v Sam Ryan Ziegann | 7-5,6-1 |
| ITF M15 Anseong | 2019/06/24 01:00 | Nordstrom, Per v Sam Ryan Ziegann | 3-6,2-6 |
| Gimcheon, Singles M-ITF-KOR-03A | 2019/06/17 01:00 | Ren Nakamura v Sam Ryan Ziegann | 2-6,6-2,10-7 |
| Akishima, Singles M-ITF-JPN-08A | 2019/06/11 00:00 | Okagaki, Kosuke v Sam Ryan Ziegann | 6-1,6-0 |
| Guam, Singles M-ITF-GUM-01A | 2019/06/06 00:00 | Moritani, Soichiro v Sam Ryan Ziegann | 6-2,6-2 |
| Guam, Singles M-ITF-GUM-01A | 2019/06/04 00:00 | Sam Ryan Ziegann v Kallioniemi, Marcus | 6-0,6-0 |
| ITF - M15 Karuizawa | 2019/05/28 01:00 | Takeuchi, Kento (1987) v Sam Ryan Ziegann | 6-3,6-3 |