Stadium: Grandstand Round: 64 Ground: Clay
| Challenger Braunschweig | 2018/07/10 14:00 | Martin Klizan v Martin Cuevas | 6-3,0-6,4-6 |
| Challenger Poznan | 2018/06/07 13:30 | Martin Klizan v Andrea Arnaboldi | 3-6,3-6 |
| Challenger Poznan | 2018/06/06 11:40 | Martin Klizan v Mitchell Krueger | 6-2,6-2 |
| French Open | 2018/05/30 16:20 | Martin Klizan v Gael Monfils | 2-6,4-6,4-6 |
| French Open | 2018/05/27 10:55 | Martin Klizan v Laslo Djere | 7-6,4-6,7-6,6-1 |
| French Open Qual | 2018/05/25 08:00 | Martin Klizan v Juan Ignacio Londero | 6-4,4-6,7-6 |
| French Open Qual | 2018/05/23 15:10 | Martin Klizan v Miomir Kecmanovic | 6-7,7-6,6-3 |
| French Open Qual | 2018/05/21 08:00 | Martin Klizan v Sumit Nagal | 4-6,6-4,6-1 |
| Challenger Recanati | 2018/07/02 16:55 | Danilo Petrovic v Roberto Quiroz | 2-6,6-3,2-6 |
| Wimbledon Qual | 2018/06/25 10:00 | Alessandro Giannessi v Danilo Petrovic | 6-3,6-3 |
| Challenger Mestre | 2018/05/26 11:00 | Gianluigi Quinzi v Danilo Petrovic | 6-2,7-6 |
| Challenger Mestre | 2018/05/25 09:30 | Sergio Gutierrez-Ferrol v Danilo Petrovic | 6-1,4-6,1-6 |
| Challenger Mestre | 2018/05/24 09:30 | Scott Griekspoor v Danilo Petrovic | 7-6,6-7,1-6 |
| Challenger Mestre | 2018/05/21 12:10 | Andrea Basso v Danilo Petrovic | 6-2,1-6,3-6 |
| Challenger Puerto Vallarta | 2018/05/05 23:00 | Adrian Menendez-Maceiras v Danilo Petrovic | 1-6,7-5,6-3 |
| Challenger Puerto Vallarta | 2018/05/04 23:00 | Danilo Petrovic v Carlos Gomez-Herrera | 6-3,6-3 |