Stadium: Court 10 Round: 26 Ground: Hardcourt outdoor
| ITF Poland F1 | 2018/05/04 13:00 | Guy Den Heijer v Michael Vrbensky | 7-6,2-6,3-6 |
| ITF Poland F1 | 2018/05/03 09:00 | Guy Den Heijer v Piotr Grynkowski | 6-1,6-2 |
| ITF Greece F4 | 2018/03/18 09:30 | Guy Den Heijer v Duje Ajdukovic | 3-6,6-3,4-6 |
| ITF Greece F4 | 2018/03/17 07:30 | Guy Den Heijer v Vasilios Caripi | 5-7,6-3,6-4 |
| ITF Greece F3 | 2018/03/15 08:00 | Neil Pauffley v Guy Den Heijer | 6-4,6-2 |
| ITF Greece F3 | 2018/03/13 10:20 | Jannik Sinner v Guy Den Heijer | 3-6,6-7 |
| ITF Greece F2 | 2018/03/03 07:30 | Guy Den Heijer v Duje Ajdukovic | 3-6,5-7 |
| ITF Spain F4 | 2018/02/10 14:30 | Daniel Gimeno-Traver v Guy Den Heijer | 6-2,7-5 |
| ITF Israel F6 | 2018/05/11 08:55 | Edan Leshem v Luca Castelnuovo | 6-1,6-4 |
| ITF Israel F6 | 2018/05/10 09:05 | Edan Leshem v Jordan Hasson | 6-4,6-2 |
| ITF Israel F6 | 2018/05/09 12:05 | Edan Leshem v Yannai Barkai | 6-2,6-3 |
| Challenger Puerto Vallarta | 2018/05/02 21:05 | Edan Leshem v Roberto Quiroz | 2-6,6-3,3-6 |
| Challenger Puerto Vallarta | 2018/04/30 20:30 | Austin Krajicek v Edan Leshem | 3-6,4-6 |
| Challenger Leon | 2018/04/24 19:35 | Edan Leshem v John-Patrick Smith | 6-7,0-6 |
| Challenger Guadalajara | 2018/04/16 19:45 | Ante Pavic v Edan Leshem | 7-5,5-7,6-3 |
| Davis Cup | 2018/04/06 13:00 | Jiri Vesely v Edan Leshem | 6-0,6-1 |