Stadium: Center Court Round: 27 Ground: Clay
| ITF USA F10 | 2018/04/10 18:20 | Isaiah Strode v Sebastian Fanselow | 6-0,7-6 |
| ITF USA F9 | 2018/04/08 17:10 | Scott Griekspoor v Sebastian Fanselow | 6-7,6-4,7-5 |
| ITF USA F9 | 2018/04/08 15:00 | Jack Findel-Hawkins v Sebastian Fanselow | 2-6,7-6,3-6 |
| ITF USA F9 | 2018/04/07 18:30 | Sebastian Fanselow v Karue Sell | 7-6,6-3 |
| ITF USA F9 | 2018/04/05 17:20 | Sebastian Fanselow v Nicholas S. Hu | 5-7,6-3,6-1 |
| ITF USA F9 | 2018/04/03 15:40 | Sebastian Fanselow v Santiago Rodriguez Taverna | 7-5,6-3 |
| ITF USA F8 Qual | 2018/03/19 17:00 | Sebastian Fanselow v Andre Goransson | 6-7,6-7 |
| ITF USA F8 Qual | 2018/03/18 17:00 | Sebastian Fanselow v Alec Adamson | 6-2,6-2 |
| ITF Brazil F3 | 2018/05/07 13:30 | Matias Zukas v Tomas Martin Etcheverry | 3-6,0-6 |
| ITF Brazil F2 | 2018/05/03 17:15 | Matias Zukas v Aaron Schmid | 6-0,1-6,4-6 |
| ITF Brazil F2 | 2018/05/01 19:30 | Matias Zukas v Alejo Vilaro | 6-3,7-5 |
| ITF USA F12 | 2018/04/26 18:40 | Matias Zukas v Ricardo Rodriguez-Pace | 5-7,1-6 |
| ITF USA F12 | 2018/04/25 19:25 | Matias Zukas v Axel Nefve | 5-7,6-3,6-1 |
| ITF USA F12 | 2018/04/22 17:00 | Matias Zukas v Trey Hilderbrand | 3-6,7-5,6-0 |
| ITF USA F12 | 2018/04/21 16:00 | Matias Zukas v Siem Woldeab | 6-2,6-3 |
| ITF USA F12 | 2018/04/20 13:30 | Matias Zukas v Daniel Paty | 6-4,6-2 |