Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF Qatar F5 | 2018/12/15 13:00 | Tak Khunn Wang v Goncalo Oliveira | 6-3,6-3 |
| ITF Italy F33 | 2014/09/24 09:45 | Goncalo Oliveira v Tak Khunn Wang | 2-6,6-4,6-3 |
| Challenger Shanghai | 2019/09/09 09:25 | Chukang Wang v Tak Khunn Wang | 6-4,4-6,2-6 |
| Challenger Jinan | 2019/09/03 06:55 | Tak Khunn Wang v Renta Tokuda | 6-3,5-7,3-6 |
| Challenger Meerbusch | 2019/08/16 11:35 | Carlos Taberner v Tak Khunn Wang | 6-1,6-0 |
| Challenger Meerbusch | 2019/08/15 09:00 | Tak Khunn Wang v Thomaz Bellucci | 6-1,6-2 |
| Challenger Meerbusch | 2019/08/14 09:40 | Baptiste Crepatte v Tak Khunn Wang | 4-6,1-6 |
| Challenger Meerbusch | 2019/08/13 08:00 | Martin Cuevas v Tak Khunn Wang | 1-6,2-6 |
| Challenger Augsburg | 2019/08/05 11:05 | Tak Khunn Wang v Benjamin Hassan | 2-6,4-6 |
| Challenger Liberec | 2019/07/30 08:00 | Tak Khunn Wang v Jaroslav Pospisil | 4-6,5-7 |
| Challenger Jinan | 2019/09/02 07:40 | Igor Sijsling v Goncalo Oliveira | 3-6,2-6 |
| Challenger Baotou | 2019/08/29 05:35 | Aleksandar Vukic v Goncalo Oliveira | 4-6,6-3,0-6 |
| Challenger Baotou | 2019/08/28 05:55 | Luca Castelnuovo v Goncalo Oliveira | 4-6,4-6 |
| Challenger Manerbio | 2019/08/07 08:00 | Goncalo Oliveira v Andrea Pellegrino | 1-6,4-6 |
| Challenger Chengdu | 2019/08/01 07:45 | Goncalo Oliveira v Shuichi Sekiguchi | 4-6,6-3,4-6 |
| Challenger Chengdu | 2019/07/31 07:00 | Goncalo Oliveira v Arjun Kadhe | 7-6,6-3 |
| Challenger Tampere | 2019/07/24 07:30 | Jeroen Vanneste v Goncalo Oliveira | 6-3,7-6 |
| Challenger Nur-Sultan | 2019/07/18 05:00 | Yunseong Chung v Goncalo Oliveira | 6-7,7-5,6-4 |