Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF M15 - Monastir | 2021/04/12 13:00 | Leyton Rivera v Niklas Schell | 4-6,7-6,8-10 |
| ITF M15 - Monastir | 2021/04/11 11:00 | Viktor Jovic v Niklas Schell | 6-7,2-6 |
| ITF M25 - Trimbach | 2021/03/10 11:45 | Elmar Ejupovic v Niklas Schell | 7-6,6-4 |
| ITF M25 - Trimbach | 2021/03/09 12:00 | Niklas Schell v Johann Lars | 6-3,6-4 |
| ITF M25 - Trimbach | 2021/03/08 12:50 | Niklas Schell v Kilian Feldbausch | 6-3,6-4 |
| German Championship | 2020/12/10 15:30 | Daniel Masur v Niklas Schell | 6-1,6-3 |
| German Championship | 2020/12/09 14:00 | Thomas Jan Dafcik v Niklas Schell | 3-6,4-6 |
| ITF M15 - Sarreguemines | 2020/10/25 14:05 | Niklas Schell v Kenneth Raisma | 6-7,6-7 |
| ITF M15 - Sharm El Sheikh | 2021/03/24 08:50 | Giorgio Ricca v Petr Hajek | 6-7,7-5,1-6 |
| ITF M15 - Sharm El Sheikh | 2021/03/16 07:30 | Giorgio Ricca v Illya Beloborodko | 6-7,4-6 |
| ITF M15 - Sharm El Sheikh | 2021/03/15 07:30 | Giorgio Ricca v Ivan Mikhaylyuk | 7-5,6-4 |
| ITF M15 - Sharm El Sheikh | 2021/03/14 07:00 | Giorgio Ricca v Matas Vasiliauskas | 6-4,7-5 |
| ITF M15 - Sharm El Sheikh | 2021/03/09 07:30 | Giorgio Ricca v Lukas Krainer | 2-6,6-3,8-10 |
| ITF M15 - Sharm El Sheikh | 2021/03/08 07:30 | Giorgio Ricca v Marco De Rossi | 6-3,7-5 |
| ITF M15 - Sharm El Sheikh | 2021/03/07 07:00 | Giorgio Ricca v Roland Stuurman | 6-1,6-1 |
| ITF M15 - Sharm El Sheikh | 2021/02/17 12:40 | Giorgio Ricca v Sho Shimabukuro | 6-4,4-6,6-7 |