Stadium: C Round: 29
| ITF Portugal F20 | 2017/09/29 12:45 | Joao Monteiro v Yannick Mertens | 4-6,6-4,4-6 |
| ITF Portugal F20 | 2017/09/28 12:10 | Daniel Masur v Yannick Mertens | 2-6,6-7 |
| ITF Portugal F20 | 2017/09/27 11:25 | Hubert Hurkacz v Yannick Mertens | 4-6,1-6 |
| ITF Portugal F20 | 2017/09/26 09:00 | Jonathan Kanar v Yannick Mertens | 3-6,0-6 |
| ATP Metz Qual | 2017/09/18 11:30 | Peter Gojowczyk v Yannick Mertens | 6-3,6-4 |
| ATP Metz Qual | 2017/09/17 13:50 | Yannick Mertens v Calvin Hemery | 7-5,6-1 |
| Challenger Istanbul | 2017/09/12 11:15 | Mirza Basic v Yannick Mertens | 3-6,6-3,7-5 |
| Challenger Istanbul Qual | 2017/09/10 08:00 | Yannick Mertens v Shalva Dzhanashia | 6-1,6-2 |
| ITF Portugal F20 | 2017/09/29 15:25 | Pedja Krstin v Sadio Doumbia | 6-1,6-1 |
| ITF Portugal F20 | 2017/09/28 14:35 | Gianni Mina v Pedja Krstin | 3-6,1-6 |
| ITF Portugal F20 | 2017/09/27 09:30 | Niels Desein v Pedja Krstin | 4-6,4-6 |
| ITF Portugal F20 | 2017/09/26 10:15 | Francisco Cabral v Pedja Krstin | 3-6,6-7 |
| ATP St Petersburg Qual | 2017/09/17 08:00 | Ivan Nedelko v Pedja Krstin | 6-3,6-4 |
| Challenger Banja Luka | 2017/09/11 11:50 | Andrea Arnaboldi v Pedja Krstin | 5-7,6-1,6-3 |
| Challenger Alphen | 2017/09/05 15:00 | Pedja Krstin v Pedro Sousa | 4-6,6-4,2-6 |
| Challenger Tampere | 2017/07/25 09:30 | Pedja Krstin v Sebastian Ofner | 7-6,5-7,4-6 |