Stadium: Campo 5 Round: 25 Ground: Clay
| ITF Hungary F5 | 2017/06/24 08:00 | Goncalo Oliveira v Pedja Krstin | 6-2,6-2 |
| Challenger Santiago | 2021/10/11 18:55 | Juan Pablo Ficovich v Goncalo Oliveira | 6-3,6-1 |
| Challenger Santiago | 2021/10/06 16:00 | Gonzalo Lama v Goncalo Oliveira | 6-4,3-6,7-5 |
| Challenger Santiago | 2021/10/05 16:40 | Goncalo Oliveira v Oliver Crawford | 6-4,6-2 |
| Challenger Lisbon | 2021/09/29 14:10 | Andrej Martin v Goncalo Oliveira | 2-6,6-4,6-3 |
| Challenger Lisbon | 2021/09/27 13:00 | Goncalo Oliveira v Pedro Araujo | 7-6,6-4 |
| Challenger Quito | 2021/09/14 18:20 | Eduard Esteve Lobato v Goncalo Oliveira | 6-2,6-3 |
| Challenger Seville | 2021/09/06 17:00 | Goncalo Oliveira v Julian Lenz | 2-6,6-4,2-6 |
| Challenger Warsaw | 2021/08/25 08:00 | Szymon Kielan v Goncalo Oliveira | 7-5,6-0 |
| Challenger Barcelona | 2021/10/05 09:45 | Pedja Krstin v Nicola Kuhn | 4-6,4-6 |
| Challenger Banja Luka | 2021/09/06 11:55 | Pedja Krstin v Nicolas Moreno De Alboran | 6-2,3-6,6-2 |
| Challenger Barletta | 2021/08/25 09:00 | Pedja Krstin v Mohamed Aziz Dougaz | 2-6,2-6 |
| Challenger Trieste | 2021/07/29 14:50 | Damir Dzumhur v Pedja Krstin | 6-3,6-1 |
| Challenger Trieste | 2021/07/28 08:00 | Pedja Krstin v Viktor Durasovic | 6-3,6-2 |
| Challenger Tampere | 2021/07/21 15:00 | Botic Van De Zandschulp v Pedja Krstin | 6-3,6-1 |
| Challenger Tampere | 2021/07/19 15:30 | JC Aragone v Pedja Krstin | 4-6,4-6 |
| Challenger Iasi | 2021/07/13 07:00 | Pedja Krstin v Dimitar Kuzmanov | 2-6,2-6 |