Stadium: Tammsaare 5 Round: 54 Ground: Hardcourt indoor
| ITF M15 Vejle | 2021/07/25 11:00 | Solberg, Christoffer v Valdemar Frederik Pape | 2-6,2-6 |
| ITF - M15 Doboj | 2021/07/13 11:30 | Nincevic, Frane v Solberg, Christoffer | 6-2,7-6 |
| ITF M15 Sofia | 2021/07/05 08:00 | Solberg, Christoffer v Mikhaylyuk, Ivan | 1-6,3-6 |
| ITF M15 Sofia | 2021/07/04 10:30 | Solberg, Christoffer v Sergis Kyratzis | 6-1,6-3 |
| ITF - M15 Antalya | 2020/03/08 08:00 | Gabarro, Xavier v Solberg, Christoffer | 2-1 |
| ITF - M15 Antalya | 2020/03/03 09:35 | Toledo Bague, Pol v Solberg, Christoffer | 6-3,6-0 |
| Paguera, Singles M-ITF-ESP-04A | 2020/02/16 11:00 | Solberg, Christoffer v Albertoni, Davide | 2-6,2-6 |
| ITF M15 Palmanova | 2020/02/10 10:00 | Fillat Gimenez, Oriol v Solberg, Christoffer | 6-1,6-7,10-3 |
| ITF M15 Parnu | 2021/08/02 09:30 | Antinheimo, Oskar v Fellin, Pietro Orlando | 5-7,3-6 |
| ITF M15 Vejle | 2021/07/28 10:10 | Jonathan Mridha v Fellin, Pietro Orlando | 6-3,0-6,6-4 |
| ITF M15 Vejle | 2021/07/26 07:55 | Philip Hjorth v Fellin, Pietro Orlando | 6-7,6-4,7-10 |
| ITF - M15 Monastir | 2020/09/27 10:00 | Shyla, Yaraslau v Fellin, Pietro Orlando | 6-7,6-2,10-7 |
| ITF - M15 Monastir | 2020/09/20 08:00 | Fellin, Pietro Orlando v Andrews, Max | 6-4,0-6,0-10 |
| ITF - M15 Monastir | 2020/09/13 10:30 | Fellin, Pietro Orlando v Kotzen, Alexander | 3-6,6-7 |
| ITF M15 Anif | 2020/08/23 09:30 | Fellin, Pietro Orlando v Thiago Agustin Tirante | 2-6,1-6 |
| ITF - M15 Monastir | 2019/11/11 12:30 | Noskin, Egor v Fellin, Pietro Orlando | 6-4,6-4 |