Stadium: Court 1 Round: 62 Ground: Clay
| ITF M25 Geelong | 2020/03/10 23:00 | Naoki Tajima v Rio Noguchi | 0-6,1-6 |
| ITF M25 Mildura | 2020/03/03 02:40 | Naoki Tajima v Alexander Crnokrak | 6-3,4-6,5-7 |
| ITF M15 Antalya | 2020/02/19 09:15 | Jonas Forejtek v Naoki Tajima | 6-4,6-2 |
| ITF M15 Antalya | 2020/02/16 13:00 | Naoki Tajima v Juan Pablo Paz | 2-6,6-3,5-10 |
| ITF M15 Antalya | 2020/02/16 08:20 | Alexandar Lazarov v Naoki Tajima | 7-6,4-6,6-10 |
| ITF M15 Antalya | 2020/02/15 12:30 | Naoki Tajima v Baran Cengiz | 7-5,6-7,10-5 |
| ITF M15 Antalya | 2020/02/15 07:00 | Calin Manda v Naoki Tajima | 2-6,3-6 |
| Challenger Launceston | 2020/02/03 23:00 | Naoki Tajima v Blake Mott | 6-4,1-6,2-6 |
| ITF M25 Jablonec Nad Nisou | 2020/09/22 08:00 | Piotr Matuszewski v Francisco Comesana | 3-6,3-6 |
| ITF M25 Jablonec Nad Nisou | 2020/09/21 09:00 | Cristian Rodriguez v Piotr Matuszewski | 6-7,2-6 |
| ITF M25 Jablonec Nad Nisou | 2020/09/20 08:00 | Piotr Matuszewski v Peter Samosi | 6-0,6-0 |
| ITF M25 Poznan | 2020/08/26 07:55 | Piotr Matuszewski v Maciej Rajski | 3-6,6-7 |
| Polish National Tour | 2020/08/21 11:55 | Kamil Gajewski v Piotr Matuszewski | 7-6,6-4 |
| Polish National Tour | 2020/08/20 15:45 | Grzegorz Rudnicki v Piotr Matuszewski | 1-6,1-6 |
| Polish National Tour | 2020/08/20 10:20 | Piotr Matuszewski v Pawel Juszczak | 3-6,7-6,7-6 |
| Polish National Tour | 2020/06/18 09:00 | Pawel Juszczak v Piotr Matuszewski | 6-1,6-7,6-4 |