Stadium: Court 18 Round: 1
| ITF M25 Naples | 2019/10/31 14:00 | Sam Riffice v Stefan Kozlov | 2-6,4-6 |
| ITF M25 Naples | 2019/10/29 16:00 | Sam Riffice v Micah Braswell | 6-3,6-3 |
| ITF M25 Houston | 2019/09/19 00:20 | Alexander Lebedev v Sam Riffice | 0-6,0-6 |
| US Open | 2019/08/19 15:00 | Stefano Napolitano v Sam Riffice | 6-2,6-4 |
| Challenger Aptos | 2019/08/07 01:00 | Sam Riffice v Taro Daniel | 4-6,0-6 |
| Challenger Aptos | 2019/08/05 18:45 | Sam Riffice v Yosuke Watanuki | 6-2,6-4 |
| Challenger Winnetka | 2019/07/09 18:35 | John McNally v Sam Riffice | 6-4,4-6,6-4 |
| ITF M25 Tulsa | 2019/06/23 17:00 | Maxime Cressy v Sam Riffice | 6-3,6-1 |
| ITF M15 Tallahassee | 2019/12/04 17:55 | Ronald Hohmann v Patrick Kypson | 5-7,4-6 |
| ITF M15 Tallahassee | 2019/12/02 15:00 | Ronald Hohmann v Perry Gregg | 6-4,6-2 |
| ITF M25 Naples | 2019/11/20 13:50 | Fletcher Scott v Ronald Hohmann | 6-7,7-6,7-6 |
| ITF M25 Naples | 2019/11/19 14:00 | Alvaro Fernandez Horta v Ronald Hohmann | 3-6,1-6 |
| ITF M25 Naples | 2019/11/18 14:00 | Ronald Hohmann v Alfredo Perez | 6-1,6-1 |
| ITF M25 Orlando | 2019/11/11 15:00 | Joel Vincent Link v Ronald Hohmann | 6-7,6-3,10-6 |
| ITF M25 Fort Worth | 2019/10/21 15:00 | Luc Fomba v Ronald Hohmann | 6-3,6-3 |
| ITF M25 Fort Worth | 2019/10/20 15:00 | Stefan Leustian v Ronald Hohmann | 4-6,6-7 |