Stadium: Court 7 Round: 26 Ground: Clay
| 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 |
| Challenger San Francisco Qual | 2018/02/04 22:20 | Rrezart Cungu v Karue Sell | 3-6,1-6 |
| Challenger San Francisco Qual | 2018/02/03 23:30 | Francesco Ferrari v Karue Sell | 1-6,7-6,3-6 |
| ITF USA F9 | 2018/04/03 15:40 | Or Ram-Harel v Yannick Mertens | 4-6,6-3,1-6 |
| Challenger Le Gosier | 2018/03/27 20:55 | Yannick Mertens v Ruben Bemelmans | 5-7,1-6 |
| Challenger Lille | 2018/03/20 18:05 | Guillermo Olaso v Yannick Mertens | 5-7,6-1,6-3 |
| ITF Israel F1 | 2018/03/08 08:00 | Yannick Mertens v Gianluca Mager | 7-5,6-3 |
| ITF Israel F1 | 2018/03/07 09:40 | Yannick Mertens v Nicolas Ferrando | 6-2,6-2 |
| ITF Israel F1 | 2018/03/06 11:35 | Yannick Mertens v Patrik Niklas-Salminen | 6-3,6-3 |
| ITF Portugal F1 | 2018/02/24 13:05 | Yannick Mertens v Tiago Cacao | 3-6,6-4,4-6 |
| ITF Portugal F1 | 2018/02/23 11:25 | Yannick Mertens v Igor Marcondes | 3-6,6-4,6-1 |