Stadium: COURT 10 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Johannesburg | 2021/09/14 08:00 | Igor Marcondes v Kelsey Stevenson | 5-7,6-7 |
| ITF M25 Sintra | 2021/09/08 14:35 | Dan Added v Igor Marcondes | 6-2,6-4 |
| ITF M25 Poznan | 2021/08/27 11:30 | Pawel Juszczak v Igor Marcondes | 6-2,5-7,6-4 |
| ITF M25 Poznan | 2021/08/26 09:00 | Igor Marcondes v Martins Podzus | 6-4,6-1 |
| ITF M15 Lodz | 2021/08/20 08:00 | Igor Marcondes v Wilson Leite | 2-6,1-6 |
| ITF M15 Lodz | 2021/08/19 08:00 | Igor Marcondes v Valerio Aboian | 6-3,6-1 |
| ITF M15 Lodz | 2021/08/17 10:45 | Igor Marcondes v Aleksander Orlikowski | 7-6,6-4 |
| ITF M15 Gdynia | 2021/08/11 12:40 | Daniel Michalski v Igor Marcondes | 6-2,6-3 |
| ITF M25 Johannesburg | 2021/09/14 11:20 | Francesco Vilardo v Mehluli D A Sibanda | 6-4,6-3 |
| ITF M15 Castelo Branco | 2021/07/28 16:40 | Mehluli D A Sibanda v Robin Bertrand | 2-6,1-6 |
| ITF M25 Idanha-A-Nova | 2021/07/21 11:35 | Alexander Cozbinov v Mehluli D A Sibanda | 6-3,6-0 |
| ITF M25 Idanha-A-Nova | 2021/07/14 11:50 | Mehluli D A Sibanda v Garrett Johns | 1-6,5-7 |
| ITF M15 Antalya | 2021/02/28 11:00 | Mehluli D A Sibanda v Benedikt Henning | 2-6,1-6 |
| Challenger Potchefstroom | 2020/03/12 08:00 | Fabien Reboul v Mehluli D A Sibanda | 6-4,6-2 |
| Challenger Potchefstroom | 2020/03/09 12:15 | Mehluli D A Sibanda v Courtney John Lock | 7-6,6-4 |
| Davis Cup | 2020/03/06 08:00 | Mehluli D A Sibanda v Hazem Naw | 3-6,3-6 |