Stadium: Court 4 Round: 44 Ground: Clay
| ITF M25 Prague | 2020/09/14 09:00 | Dominik Kellovsky v Johan Nikles | 6-4,6-3 |
| ITF M25 Prague | 2020/09/13 13:30 | Erhardt, Gaston v Johan Nikles | 0-6,2-6 |
| Swiss Tennis Masters | 2020/07/08 15:15 | Marc-Andrea Huesler v Johan Nikles | 6-2,6-2 |
| Swiss Tennis Masters | 2020/07/08 10:00 | Antoine Bellier v Johan Nikles | 3-6,5-7 |
| Swiss Tennis Masters | 2020/07/07 12:30 | Yannik Steinegger v Johan Nikles | 3-6,2-6 |
| Swiss Tennis Masters | 2020/07/05 12:30 | Johan Nikles v Baltensperger, Raphael | 6-1,6-3 |
| ITF - M25 Naples | 2020/02/13 17:10 | Gonzalez, Alejandro v Johan Nikles | 6-4,2-6,6-1 |
| ITF - M25 Naples | 2020/02/11 16:50 | Johan Nikles v Nicolas Mejia | 6-2,6-4 |
| ITF M25 Jablonec Nad Nisou | 2020/09/20 08:15 | Wolfschmidt, Alexander v Filip Duda | 1-6,3-6 |
| ITF M25 Prague | 2020/09/13 09:00 | Filip Duda v Dalibor Svrcina | 2-6,1-6 |
| ITF - M15 Sharm El Sheikh | 2020/03/11 13:50 | Syed Naguib, Syed Mohd Agil v Filip Duda | 2-6,2-6 |
| Trnava, Singles Main, M-ITF-SVK-03A | 2020/02/26 10:50 | Filip Duda v Petr Michnev | 4-6,3-6 |
| Trnava, Singles Main, M-ITF-SVK-03A | 2020/02/25 09:00 | Petr Michnev v Filip Duda | 7-5,6-3 |
| Trnava, Singles Main, M-ITF-SVK-03A | 2020/02/24 08:30 | Shcherba, Vitalii v Filip Duda | 1-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/09 12:00 | Filip Duda v Trocker, Moritz | 6-7,4-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/05 08:00 | Yitbarek, Simon v Filip Duda | 2-6,6-2,6-2 |