Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/03/09 09:45 | Niklas Guttau v Illya Beloborodko | 7-5,4-6,4-10 |
| ITF M15 Sharm El Sheikh | 2021/03/08 11:30 | Niklas Guttau v Mirko Lagasio | 6-3,4-6,10-4 |
| ITF M15 Sharm El Sheikh | 2021/03/07 16:00 | Niklas Guttau v Yacoub Makzoume | 6-3,6-2 |
| ITF M15 Monastir | 2021/02/28 10:30 | Niklas Guttau v Stefano Reitano | 3-6,6-3,7-10 |
| ITF M15 Monastir | 2021/02/22 08:00 | Samir Hamza Reguig v Niklas Guttau | 6-7,6-1,11-9 |
| ITF M15 Monastir | 2021/02/21 12:00 | Milan Drinic v Niklas Guttau | 4-6,4-6 |
| 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 |
| ITF M15 Sharm El Sheikh | 2021/03/07 07:00 | Noel Larwig v Babji Siva Atturu | 6-1,6-4 |
| ITF M15 Sharm El Sheikh | 2021/03/01 11:30 | Roman Andres Burruchaga v Babji Siva Atturu | 6-2,6-2 |
| ITF M15 Cairo | 2021/01/24 08:00 | Babji Siva Atturu v Dhruv Sunish | 3-6,1-6 |
| ITF M15 Cairo | 2021/01/17 07:00 | Babji Siva Atturu v Lorenzo Bocchi | 1-6,1-6 |
| ITF M15 Cairo | 2021/01/11 09:00 | Juan Bautista Otegui v Babji Siva Atturu | 6-3,6-0 |
| ITF M15 Cairo | 2021/01/10 14:00 | Babji Siva Atturu v Constantinos Papavasiliou | 6-1,5-7,10-5 |
| ITF M15 Monastir | 2020/03/08 08:00 | Babji Siva Atturu v Moritz Trocker | 2-6,1-6 |
| ITF M15 Monastir | 2020/03/01 12:30 | Hugo Pontico v Babji Siva Atturu | 6-0,6-2 |