Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2019/01/31 09:35 | Jacopo Berrettini v Diego Hidalgo | 6-4,7-6 |
| ITF M15 Monastir | 2019/01/29 08:30 | Diego Hidalgo v Mubarak Shannan Zayid | 7-5,6-3 |
| ITF USA F35 | 2018/12/04 17:00 | Diego Hidalgo v Maxime Cressy | 1-6,4-6 |
| ITF USA F33 | 2018/11/20 17:40 | Diego Hidalgo v Paul Oosterbaan | 6-7,7-5,3-6 |
| ITF USA F31 | 2018/11/15 18:05 | Matej Vocel v Diego Hidalgo | 6-3,6-2 |
| ITF USA F31 | 2018/11/13 19:55 | Henry Craig v Diego Hidalgo | 6-3,2-6,5-7 |
| Challenger Guayaquil | 2018/10/29 23:15 | Pablo Cuevas v Diego Hidalgo | 6-3,6-0 |
| ITF Peru F3 | 2018/10/12 19:55 | Diego Hidalgo v Nicolas Santos | 6-3,6-3 |
| ITF Qatar F6 | 2018/12/18 08:20 | Alexandar Lazarov v Guy Den Heijer | 7-6,7-6 |
| ITF Qatar F6 | 2018/12/17 10:00 | Guy Den Heijer v Tom Pisane | 6-3,6-4 |
| ITF Qatar F6 | 2018/12/16 15:10 | Guy Den Heijer v Yuri Khachatryan | 7-5,6-0 |
| ITF Qatar F5 | 2018/12/11 17:40 | Guy Den Heijer v Tak Khunn Wang | 3-6,3-6 |
| ITF Qatar F5 | 2018/12/10 14:00 | Lucas Gerch v Guy Den Heijer | 6-2,3-6,4-6 |
| ITF Qatar F4 | 2018/12/04 16:55 | Zizou Bergs v Guy Den Heijer | 6-4,6-0 |
| ITF Qatar F4 | 2018/12/03 12:00 | Guy Den Heijer v Alexander Donski | 4-6,7-5,6-1 |
| ITF Qatar F4 | 2018/12/02 15:05 | Guy Den Heijer v Yanik Kaelin | 6-2,6-3 |