Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Cairo | 2021/08/30 09:00 | Louis Allen v Ioannis Kountourakis | 6-7,6-4,10-6 |
| ITF M15 L'Aquila | 2021/07/11 07:00 | Ioannis Kountourakis v Federico Bertuccioli | 3-6,4-6 |
| ITF M15 Heraklion | 2021/06/08 08:00 | Petros Tsitsipas v Ioannis Kountourakis | 6-1,7-6 |
| ITF M15 Heraklion | 2021/05/30 11:00 | Eduardo Cohen v Ioannis Kountourakis | 4-6,6-0,10-7 |
| ITF M15 Heraklion | 2021/05/23 06:30 | Ioannis Kountourakis v Christos Avraam | 6-1,4-6,7-10 |
| ITF M15 Heraklion | 2021/05/16 10:30 | Ioannis Kountourakis v David Eisenzapf | 3-6,1-6 |
| ITF M15 Monastir | 2021/04/05 08:00 | Ioannis Kountourakis v Vitali Shvets | 4-6,6-0,6-10 |
| ITF M15 Monastir | 2021/04/04 09:00 | Simon Yitbarek v Ioannis Kountourakis | 4-6,6-2,7-10 |
| ITF M15 Cairo | 2021/08/01 12:30 | Atharva Sharma v Adham Gaber | 5-7,1-6 |
| ITF M15 Cairo | 2021/07/25 07:00 | Daisuke Sumizawa v Atharva Sharma | 6-1,6-1 |
| ITF M15 Cairo | 2021/07/18 07:30 | Sami Ben Abdennibi v Atharva Sharma | 6-2,7-5 |
| ITF M15 Pune | 2021/03/24 05:40 | Oliver Crawford v Atharva Sharma | 6-1,6-0 |
| ITF M15 Indore | 2021/03/07 10:00 | Anvit Bendre v Atharva Sharma | 7-5,7-5 |
| ITF M15 Lucknow | 2021/03/01 04:00 | Nitin Kumar Sinha v Atharva Sharma | 6-2,6-1 |
| ITF M15 Lucknow | 2021/02/28 03:50 | Jagmeet Singh v Atharva Sharma | 4-6,4-6 |
| ITF M15 Cairo | 2019/12/10 07:30 | Atharva Sharma v Omar El-Moslemany | 2-6,2-6 |