Stadium: Court 2 Round: 44 Ground: Clay
| ITF M15 Antalya | 2021/06/01 09:30 | Giovanni Fonio v Luca Castagnola | 6-1,1-6,7-6 |
| ITF M15 Antalya | 2021/05/23 07:00 | Daniil Glinka v Luca Castagnola | 6-3,3-6,10-5 |
| ITF M15 Monastir | 2021/05/10 13:30 | Luca Castagnola v Omni Kumar | 6-7,2-6 |
| ITF M15 Monastir | 2021/05/10 09:00 | Luca Castagnola v Taketo Takamisawa | 4-6,6-3,11-9 |
| ITF M15 Monastir | 2021/05/03 12:00 | Luca Castagnola v Mattia Frinzi | 2-6,6-7 |
| ITF M15 Monastir | 2021/03/30 08:00 | Luca Castagnola v Julien De Cuyper | 3-6,7-6,8-10 |
| ITF M15 Monastir | 2021/03/29 10:30 | Colin Sinclair v Luca Castagnola | 4-6,6-3,6-10 |
| ITF M15 Monastir | 2021/03/28 08:00 | Kirill Mishkin v Luca Castagnola | 3-6,0-6 |
| ITF M25 Belgrade | 2021/06/28 07:00 | Edoardo Lavagno v Dusan Rajic | 6-1,6-2 |
| ITF M25 Belgrade | 2021/06/27 07:00 | Dusan Rajic v Ivan Mikhaylyuk | 2-6,6-0,12-10 |
| ITF M15 Brcko | 2021/05/21 13:05 | Dusan Rajic v Eric Vanshelboim | 3-6,1-6 |
| ITF M15 Brcko | 2021/05/21 07:35 | Kristjan Tamm v Dusan Rajic | 4-6,5-7 |
| ITF M15 Brcko | 2021/05/18 12:00 | Lazar Milicevic v Dusan Rajic | 7-6,6-4 |
| ITF M15 Brcko | 2021/05/18 07:00 | Valentin Lapalu v Dusan Rajic | 1-6,6-3,6-10 |
| ITF M15 Brcko | 2021/05/16 08:15 | Preston Connor v Dusan Rajic | 3-6,0-6 |
| ITF M15 Prijedor | 2021/05/10 09:15 | Dusan Rajic v Lazar Milicevic | 2-6,2-6 |