Stadium: Court 1 Round: 25 Ground: Clay
| ITF M15 Sharm El Sheikh | 2021/02/20 07:25 | Robert Strombachs v Pawel Juszczak | 6-7,4-6 |
| ITF M15 Monastir | 2021/07/01 10:35 | Robert Strombachs v Luca Giacomini | 4-6,1-6 |
| ITF M15 Monastir | 2021/06/30 08:30 | Robert Strombachs v Antonio Cayetano March | 6-3,7-5 |
| ITF M25 Montauban | 2021/06/23 13:15 | Titouan Droguet v Robert Strombachs | 6-4,4-6,6-2 |
| ITF M25 Montauban | 2021/06/21 17:15 | Robert Strombachs v Thibault Verdier | 6-1,6-1 |
| ITF M15 Gaiba | 2021/06/09 08:30 | Robert Strombachs v Giorgio Ricca | 2-6,1-6 |
| ITF M15 Monastir | 2021/06/04 09:40 | Robert Strombachs v Yanki Erel | 4-6,6-3,4-6 |
| ITF M15 Monastir | 2021/06/03 08:30 | Robert Strombachs v Youcef Rihane | 6-4,7-5 |
| ITF M15 Monastir | 2021/06/01 12:35 | Robert Strombachs v Gustavo Heide | 6-0,6-4 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/08 08:00 | Pawel Juszczak v Shintaro Mochizuki | 2-6,6-1,2-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/07 10:00 | Illya Beloborodko v Pawel Juszczak | 2-6,3-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/05 13:15 | Pawel Juszczak v Philip Bachmaier | 7-6,6-1 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/03 09:00 | Piotr Grynkowski v Pawel Juszczak | 2-6,2-6 |
| ITF M25 Denia | 2021/07/28 08:00 | Pawel Juszczak v Alvaro Lopez San Martin | 6-7,6-7 |
| ITF M25 Denia | 2021/07/27 10:00 | Pawel Juszczak v Gianni Ross | 3-6,6-0,10-4 |
| ITF M25 Denia | 2021/07/26 16:00 | Pawel Juszczak v Yeray A. Pastor | 6-4,6-2 |
| ITF M25 Denia | 2021/07/25 14:30 | Pawel Juszczak v Mikel Aranzabal | 6-0,6-0 |