Stadium: Court 3 Round: 25 Ground: Hardcourt indoor
| ITF M25 Pardubice | 2020/09/27 09:00 | Antonin Bolardt v Johan Nikles | 7-5,3-6,10-6 |
| ITF M25 Jablonec Nad Nisou | 2020/09/22 08:00 | Johan Nikles v Matias Zukas | 6-7,7-5,4-10 |
| ITF M25 Jablonec Nad Nisou | 2020/09/21 09:15 | Johan Nikles v Filip Duda | 4-6,6-2,10-6 |
| 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 | Gaston Erhardt 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 |
| ITF M15 Forbach | 2020/10/01 10:00 | Joshua D Karpenschif v Vitaliy Sachko | 7-6,2-6,7-5 |
| ITF M15 Forbach | 2020/09/29 08:50 | David Pichler v Joshua D Karpenschif | 5-7,2-6 |
| ITF M15 Grenoble | 2020/02/12 15:45 | Luca Van Assche v Joshua D Karpenschif | 7-6,1-6,6-2 |
| ITF M15 Bagnoles-de-l'Orne | 2020/01/15 11:25 | Markus Eriksson v Joshua D Karpenschif | 6-3,6-2 |
| ITF M25 Nevers | 2019/09/30 07:30 | Axel Garcian v Joshua D Karpenschif | 6-4,7-5 |
| ITF M25 Troyes | 2019/07/22 10:00 | Joshua D Karpenschif v Louis Lechevretel | 4-6,0-6 |
| ITF M15 Bagnoles-de-l'Orne | 2019/01/07 09:00 | Quentin Gueydan v Joshua D Karpenschif | 6-4,6-4 |