Stadium: Pista 2 Round: 28 Ground: Hardcourt outdoor
| Challenger Mallorca MD | 2021/09/02 18:30 | Barrios Vera/Gomez-Herrera v Balaji/Ramanathan | 3-6,0-6 |
| Challenger Mallorca MD | 2021/09/01 16:10 | Fallert/Matuszewski v Balaji/Ramanathan | 2-6,1-6 |
| Challenger Biella MD | 2021/06/04 15:30 | Balaji/Ramanathan v Martinez Portero/Vega Hernandez | 2-6,4-6 |
| Challenger Biella MD | 2021/06/03 15:55 | Berrettini/Cobolli v Balaji/Ramanathan | 6-7,5-7 |
| Challenger Biella MD | 2021/06/01 16:40 | Bortolotti/Vanni v Balaji/Ramanathan | 1-6,6-7 |
| Challenger Zagreb MD | 2021/05/11 13:30 | Jebavy/Martin v Balaji/Ramanathan | 6-7,7-6,11-9 |
| Challenger Mallorca MD | 2021/09/02 19:00 | Gonzales/Johnson v Romboli/Zielinski | 6-3,1-6,11-13 |
| Challenger Mallorca MD | 2021/09/01 19:20 | Matsui/Uesugi v Romboli/Zielinski | 7-5,6-7,10-12 |
| Challenger Warsaw MD | 2021/08/28 11:30 | Manafov/Matuszewski v Romboli/Zielinski | 7-6,3-6,10-6 |
| Challenger Split MD | 2020/09/30 09:00 | Luz/Matos v Romboli/Zielinski | 7-6,4-6,10-7 |