Stadium: Ct 9 Round: 25 Ground: Hardcourt outdoor
| ATP - Antwerpen | 2018/10/14 12:50 | Marcel Granollers v Yannick Mertens | 6-4,6-4 |
| ITF Portugal F18 | 2018/09/30 10:00 | Gleb Sakharov v Yannick Mertens | 7-6,6-4 |
| ITF Portugal F18 | 2018/09/29 12:25 | Tiago Cacao v Yannick Mertens | 4-6,1-6 |
| ITF Portugal F18 | 2018/09/28 14:00 | Marek Gengel v Yannick Mertens | 6-2,6-7,1-6 |
| ITF Portugal F18 | 2018/09/27 09:00 | Pedro Araujo v Yannick Mertens | 2-6,3-6 |
| ITF Portugal F18 | 2018/09/26 10:20 | Eduardo Dischinger v Yannick Mertens | 0-6,6-7 |
| ITF France F18 | 2018/09/23 13:00 | Antoine Cornut-Chauvinc v Yannick Mertens | 6-7,2-6 |
| ITF France F18 | 2018/09/22 13:50 | Antoine Escoffier v Yannick Mertens | 6-7,6-3,6-7 |
| ITF Australia F8 | 2018/10/09 01:50 | Matthew Romios v Harry Bourchier | 7-5,3-6,6-2 |
| ITF Australia F8 | 2018/10/08 02:30 | Harry Bourchier v Clint Letcher | 6-4,6-1 |
| ITF Australia F8 | 2018/10/06 04:00 | Harry Bourchier v Erik Holt-Crossman | 6-2,6-2 |
| Challenger Stockton | 2018/09/30 22:50 | Harry Bourchier v Patrick Kypson | 3-6,5-7 |
| ITF USA F25 | 2018/09/17 18:00 | Harry Bourchier v Dragos Constantin Ignat | 3-6,6-3,3-6 |
| ITF USA F25 | 2018/09/16 17:30 | Harry Bourchier v Aditya Gupta | 6-1,6-1 |
| ITF USA F25 | 2018/09/15 17:30 | Harry Bourchier v Jan Soeren Hain | 6-1,6-3 |
| Challenger Shanghai Qual | 2018/09/09 04:30 | Harry Bourchier v Dayne Kelly | 3-6,2-6 |