Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/10/06 12:25 | Giovanni Oradini v Niki Kaliyanda Poonacha | 6-7,4-6 |
| ITF - M15 Monastir | 2021/09/30 09:25 | Niki Kaliyanda Poonacha v Quentin Folliot | 1-6,2-6 |
| ITF - M15 Monastir | 2021/09/28 09:00 | Pierre Yves Bailly v Niki Kaliyanda Poonacha | 3-6,5-7 |
| ITF - M15 Monastir | 2021/09/22 08:00 | Ajeet Rai v Niki Kaliyanda Poonacha | 7-6,7-6 |
| ITF - M15 Monastir | 2021/09/15 08:00 | Niki Kaliyanda Poonacha v Blake Ellis | 3-6,3-6 |
| ITF - M15 New Delhi | 2021/04/04 05:30 | Niki Kaliyanda Poonacha v Oliver Crawford | 6-3,7-6 |
| ITF - M15 New Delhi | 2021/04/02 04:30 | Niki Kaliyanda Poonacha v Lorenzo Bocchi | 6-3,6-7,6-3 |
| ITF - M15 New Delhi | 2021/04/01 04:30 | Filip Bergevi v Niki Kaliyanda Poonacha | 4-6,4-6 |
| ITF - M15 Monastir | 2021/10/06 11:50 | Nikita Volonski v Guy Den Ouden | 7-5,2-6,1-6 |
| ITF - M15 Monastir | 2021/10/02 08:30 | Ugo Blanchet v Guy Den Ouden | 6-4,6-3 |
| ITF - M15 Monastir | 2021/10/01 08:00 | Ryota Tanuma v Guy Den Ouden | 5-7,3-6 |
| ITF - M15 Monastir | 2021/09/30 08:00 | Guy Den Ouden v Lukas Neumayer | 7-6,6-3 |
| ITF - M15 Monastir | 2021/09/29 10:45 | Guy Den Ouden v Mohamed Amine Aissa Khelifa | 6-0,6-3 |
| ITF - M15 Monastir | 2021/09/22 08:00 | Guy Den Ouden v Ryota Tanuma | 6-7,2-6 |
| ITF - M15 Allershausen | 2021/09/05 11:00 | Guy Den Ouden v Mick Veldheer | 6-0,6-4 |
| ITF - M15 Allershausen | 2021/09/04 13:10 | Guy Den Ouden v Mats Rosenkranz | 6-4,4-6,6-4 |