Stadium: Altitud (C2) Round: 25 Ground: Clay
| ITF Romania F2 | 2017/05/28 12:00 | Sumit Nagal v Goncalo Oliveira | 6-3,3-6,0-6 |
| Davis Cup | 2018/04/06 04:00 | Ze Zhang v Sumit Nagal | 6-4,6-1 |
| Challenger Marbella | 2018/03/28 11:00 | Sumit Nagal v Ramkumar Ramanathan | 2-6,3-6 |
| Challenger Marbella | 2018/03/27 14:40 | Marcel Granollers v Sumit Nagal | 4-6,1-6 |
| Challenger Marbella Qual | 2018/03/26 09:00 | Sumit Nagal v Pedro Cachin | 6-4,3-6,4-6 |
| Challenger Marbella Qual | 2018/03/25 13:00 | Sumit Nagal v Marko Djokovic | 6-3,4-6,6-1 |
| Challenger Marbella Qual | 2018/03/24 13:45 | Sumit Nagal v Gianluigi Quinzi | 6-3,3-6,6-3 |
| ITF Spain F6 | 2018/03/15 14:10 | Sumit Nagal v Joao Menezes | 1-6,6-4,4-6 |
| ITF Spain F6 | 2018/03/14 13:40 | Sumit Nagal v Dariusz Lipka | 6-0,6-2 |
| Challenger Alicante | 2018/04/02 13:30 | Pablo Andujar v Goncalo Oliveira | 6-2,6-2 |
| Challenger St Brieuc | 2018/03/26 14:55 | Goncalo Oliveira v Matthias Bachinger | 1-6,2-6 |
| Challenger Lille | 2018/03/21 09:30 | David Guez v Goncalo Oliveira | 6-1,3-6,6-3 |
| ATP Indian Wells Qual | 2018/03/06 19:00 | Nicolas Mahut v Goncalo Oliveira | 6-3,6-3 |
| Challenger Cherbourg | 2018/02/14 09:00 | Goncalo Oliveira v Mats Moraing | 5-7,6-7 |
| Challenger San Francisco | 2018/02/06 23:00 | Mitchell Krueger v Goncalo Oliveira | 6-3,6-4 |
| Challenger Dallas | 2018/01/31 18:20 | Dominik Koepfer v Goncalo Oliveira | 6-0,7-5 |
| Challenger Dallas | 2018/01/30 00:05 | Goncalo Oliveira v Yannick Hanfmann | 7-6,7-6 |