Stadium: Court 6 Round: 62 Ground: Clay
| ITF Spain F2 | 2018/01/22 09:00 | Guy Den Heijer v Andrey Chepelev | 5-7,7-6,6-7 |
| ITF Spain F2 | 2018/01/21 08:30 | Guy Den Heijer v van Der Lans, Fabian | 4-6,6-2,6-2 |
| ITF Spain F2 | 2018/01/20 11:00 | Guy Den Heijer v Muniz Hidalgo, Antonio | 6-1,6-2 |
| ITF Qatar F6 | 2017/12/22 12:00 | Alexey Vatutin v Guy Den Heijer | 6-0,7-5 |
| ITF Qatar F6 | 2017/12/20 13:20 | Fred Simonsson v Guy Den Heijer | 3-6,5-7 |
| Qatar F6, Qualifications Simples | 2017/12/16 08:55 | Guy Den Heijer v Gobet, Lorenzo | 6-2,6-0 |
| ITF Qatar F5 Qual | 2017/12/11 12:00 | Karatsev, Aslan v Guy Den Heijer | 6-4,6-2 |
| ITF Qatar F5 Qual | 2017/12/10 13:30 | Akhmaev, Iznaur v Guy Den Heijer | 2-6,0-6 |
| ITF Spain F2 | 2018/01/20 13:30 | Gatev, Maximilian v Grace, Samy | 3-6,5-7 |
| ITF Spain F1 | 2018/01/14 11:30 | Gatev, Maximilian v Ivanov, Vladislav | 5-7,6-4,3-6 |
| ITF Italy F36 Qual | 2017/10/29 13:00 | Gatev, Maximilian v Francesco Liucci | 3-6,2-6 |
| ITF Italy F35 Qual | 2017/10/22 13:00 | Grabher, Alexander Thomas v Gatev, Maximilian | 6-1,6-4 |
| ITF Italy F31 Qual | 2017/09/24 13:00 | Gatev, Maximilian v Graziani, Edoardo | 3-6,6-3,4-6 |
| ITF Italy F31 Qual | 2017/09/23 14:00 | Gatev, Maximilian v Masala, Matteo | 6-4,3-6,6-2 |
| ITF Spain F30 Qual | 2017/09/18 10:35 | Tashi, Vullnet v Gatev, Maximilian | 6-3,6-1 |
| ITF Spain F30 Qual | 2017/09/17 12:30 | Gatev, Maximilian v Alejandro Moro Canas | 7-6,6-2 |