Stadium: Court 1 Round: 26 Ground: Clay
| ITF Tunisia F16 | 2018/04/25 10:45 | Yannick Mertens v Skyler Butts | 6-1,6-2 |
| ITF USA F10 | 2018/04/11 17:10 | Yannick Mertens v Michael Redlicki | 3-6,3-6 |
| ITF USA F9 | 2018/04/05 15:00 | Karue Sell v Yannick Mertens | 6-3,4-6,7-5 |
| 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 Tunisia F16 | 2018/04/24 09:00 | Christopher Chien v Peter Bothwell | 0-6,0-6 |
| ITF Tunisia F15 | 2018/04/19 09:00 | Daniel Brands v Peter Bothwell | 6-3,6-0 |
| ITF Tunisia F15 | 2018/04/18 09:00 | Peter Bothwell v Darko Jandric | 1-6,6-3,6-1 |
| Davis Cup | 2018/04/08 09:10 | Casper Ruud v Peter Bothwell | 6-3,7-5 |
| Davis Cup | 2018/04/07 10:00 | Viktor Durasovic v Peter Bothwell | 6-3,2-6,3-6 |
| ITF Portugal F4 | 2018/03/18 12:10 | Peter Bothwell v Alejandro Davidovich Fokina | 4-6,4-6 |
| ITF Portugal F4 | 2018/03/16 11:00 | Peter Bothwell v Dusty H. Boyer | 5-7,7-6,6-3 |
| ITF Portugal F4 | 2018/03/14 11:20 | Peter Bothwell v Miliaan Niesten | 6-4,6-2 |