Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| German Championship | 2020/12/10 14:00 | Tim Handel v Niklas Guttau | 7-6,7-6 |
| DTB German Pro Series | 2020/06/26 08:00 | Niklas Guttau v Philip Florig | 6-2,7-6 |
| DTB German Pro Series | 2020/06/25 09:20 | Peter Heller v Niklas Guttau | 6-1,6-2 |
| DTB German Pro Series | 2020/06/24 10:00 | Niklas Guttau v Philip Florig | 6-7,6-2,6-1 |
| DTB German Pro Series | 2020/06/23 08:00 | Matthias Bachinger v Niklas Guttau | 6-3,6-1 |
| DTB German Pro Series | 2020/06/14 08:30 | Adrian Oetzbach v Niklas Guttau | 6-3,2-6,6-2 |
| DTB German Pro Series | 2020/06/13 11:55 | Niklas Guttau v Lucas Gerch | 4-6,3-6 |
| DTB German Pro Series | 2020/06/12 10:10 | Daniel Altmaier v Niklas Guttau | 6-3,4-6,6-3 |
| ITF M15 Antalya | 2020/03/09 08:00 | Herman Meeuwes Mattheo Knoop v Shao-Fan Liu | 6-4,6-2 |
| ITF M15 Antalya | 2020/03/08 08:00 | Floris Podzimek v Shao-Fan Liu | 0-2 |
| ITF M25 Nonthaburi | 2020/02/02 03:35 | Abhinav Sanjeev Shanmugam v Shao-Fan Liu | 6-4,7-6 |
| ITF M15 Nonthaburi | 2019/12/03 06:30 | Taiyo Yamanaka v Shao-Fan Liu | 6-7,6-2,6-3 |
| ITF M15 Nonthaburi | 2019/11/24 07:05 | Shao-Fan Liu v Jayden Court | 4-6,6-4,7-10 |
| ITF M15 Sharm El Sheikh | 2019/11/13 09:30 | Shao-Fan Liu v Pablo Vivero Gonzalez | 3-6,0-6 |
| ITF M25 Tay Ninh | 2019/10/08 04:20 | Shao-Fan Liu v Alexey Zakharov | 2-6,6-7 |
| ITF M25 Tay Ninh | 2019/10/03 02:00 | Kazuki Nishiwaki v Shao-Fan Liu | 4-6,6-2,6-3 |