Round: 25 Ground: Hardcourt outdoor
| ITF USA F9 | 2018/04/07 18:30 | Sebastian Fanselow v Karue Sell | 7-6,6-3 |
| ITF USA F9 | 2018/04/05 15:00 | Karue Sell v Yannick Mertens | 6-3,4-6,7-5 |
| ITF USA F9 | 2018/04/04 15:00 | Karue Sell v Michael Redlicki | 6-2,6-2 |
| ITF USA F8 | 2018/03/23 18:40 | Marcos Giron v Karue Sell | 6-4,6-1 |
| ITF USA F8 | 2018/03/20 17:00 | Karue Sell v Evan Song | 6-2,6-1 |
| ITF USA F7 | 2018/03/15 20:55 | Karue Sell v Borna Gojo | 6-4,4-6,5-7 |
| ITF USA F7 | 2018/03/14 23:30 | Ricardo Rodriguez-Pace v Karue Sell | 3-6,2-6 |
| Challenger San Francisco | 2018/02/06 22:30 | Karue Sell v Daniel Elahi Galan | 6-7,6-3,3-6 |
| ITF USA F9 | 2018/04/05 15:00 | Collin Altamirano v Liam Caruana | 6-2,6-4 |
| ITF USA F9 Qual | 2018/04/03 14:00 | Leny Mitjana v Liam Caruana | 6-7,0-6 |
| Challenger Punta Del Este Qual | 2018/02/26 16:10 | Juan Ignacio Londero v Liam Caruana | 6-2,6-1 |
| Challenger Punta Del Este Qual | 2018/02/25 18:45 | Rodrigo Arus v Liam Caruana | 2-6,3-6 |
| Challenger Punta Del Este Qual | 2018/02/24 21:10 | Alejo Vilaro v Liam Caruana | 5-7,4-6 |
| Challenger Launceston Qual | 2018/02/04 02:00 | Gianni Mina v Liam Caruana | 6-7,6-3,6-2 |
| Challenger Launceston Qual | 2018/02/03 01:15 | Matthew Romios v Liam Caruana | 4-6,4-6 |
| Challenger Burnie | 2018/01/29 06:20 | Stephane Robert v Liam Caruana | 4-6,7-5,6-4 |