Stadium: Court 3 Round: 27 Ground: Clay
| Challenger Seville | 2018/09/05 16:30 | Krstin, Pedja v Mohamed Safwat | 6-2,2-6,6-2 |
| Challenger Seville | 2018/09/04 08:30 | Lopez Perez v Krstin, Pedja | 5-7,4-6 |
| US Open, New York, USA | 2018/08/22 20:25 | Krstin, Pedja v Ugo Humbert | 6-7,6-4,6-7 |
| Chengdu, China | 2018/08/02 03:00 | Yibing Wu v Krstin, Pedja | 6-7,6-4,6-4 |
| Chengdu, China | 2018/07/31 10:15 | Zhe Li v Krstin, Pedja | 3-6,4-6 |
| Umag, Croatie, Qualifications | 2018/07/16 15:00 | Stefano Travaglia v Krstin, Pedja | 1-6,6-3,6-2 |
| Milan, Italy | 2018/06/30 15:45 | Krstin, Pedja v Gianluca Mager | 3-6,1-6 |
| Milan, Italy | 2018/06/27 09:00 | Krstin, Pedja v Mathias Bourgue | 6-4,6-4 |
| Challenger Seville | 2018/09/05 18:30 | Alejandro Davidovich Fokina v Grigelis, Laurynas | 5-7,6-0,4-6 |
| Challenger Seville | 2018/09/04 10:10 | Grigelis, Laurynas v Ramkumar Ramanathan | 6-4,6-2 |
| Challenger Seville | 2018/09/03 08:30 | Grigelis, Laurynas v Bernabe Zapata Miralles | 6-3,4-6,6-3 |
| Challenger Seville | 2018/09/02 10:00 | Grigelis, Laurynas v Tomas Barrios Vera | 6-3,6-4 |
| Challenger Seville | 2018/09/01 11:10 | Grigelis, Laurynas v Jordan Correia Passos Do Carmo | 6-0,4-6,6-0 |
| Cordenons, Italy | 2018/08/14 08:00 | Andrea Pellegrino v Grigelis, Laurynas | 6-7,6-2,6-4 |
| Binghamton, USA | 2018/07/28 17:30 | Jordan Thompson v Grigelis, Laurynas | 6-4,6-3 |
| Binghamton, USA | 2018/07/27 18:55 | Grigelis, Laurynas v Darian King | 4-6,6-2,7-6 |