| UTR Pro Tennis Series Bucharest | 2021/05/22 12:30 | Ilya Snitari v Colin Sinclair | 6-4,6-7,6-7 |
| UTR Pro Tennis Series Bucharest | 2021/05/22 07:00 | Colin Sinclair v Simon Beaupain | 6-3,6-4 |
| UTR Pro Tennis Series Bucharest | 2021/05/19 10:00 | Colin Sinclair v Juan Ignacio Galarza | 4-6,2-6 |
| UTR Pro Tennis Series Bucharest | 2021/05/18 10:00 | Colin Sinclair v Tomas Lipovsek Puches | 6-2,5-1 |
| UTR Pro Tennis Series Bucharest | 2021/05/17 12:30 | Nicholas David Ionel v Colin Sinclair | 6-7,4-5 |
| ITF M15 Antalya | 2021/05/10 07:00 | Colin Sinclair v Thomas Deschamps | 6-7,6-2,7-10 |
| ITF M15 Antalya | 2021/05/09 07:00 | Colin Sinclair v Farzin Danny Amiri | 6-3,6-2 |
| ITF M15 Antalya | 2021/05/07 09:40 | Colin Sinclair v Sandro Ehrat | 4-6,6-4,3-6 |
| ITF Portugal F22 | 2018/10/21 12:45 | Tilen Zitnik v Marcos Torralbo-Albos | 5-7,3-6 |
| ITF Portugal F22 | 2018/10/20 14:00 | Lluis Dolz v Tilen Zitnik | 1-6,6-2,4-6 |
| ITF Portugal F21 | 2018/10/14 11:00 | Miguel Semedo v Tilen Zitnik | 7-5,6-3 |
| ITF Portugal F21 | 2018/10/13 10:00 | Tilen Zitnik v Alvaro S-R Ariza | 7-5,7-6 |
| Davis Cup | 2017/04/09 09:00 | Lloyd Harris v Tilen Zitnik | 6-3,6-3 |
| ITF Croatia F3 | 2017/03/18 10:30 | Marco Miceli v Tilen Zitnik | 2-6,6-2,6-1 |
| ITF Croatia F2 | 2017/03/13 08:30 | Daniele Capecchi v Tilen Zitnik | 6-0,6-2 |
| ITF Croatia F1 | 2017/03/04 10:30 | Calin Manda v Tilen Zitnik | 6-3,6-1 |