Round: 54 Ground: Hardcourt indoor
| ITF M25 Barnstaple | 2020/02/12 10:00 | Patrik Niklas-Salminen v Wojciech Marek | 6-3,6-1 |
| ITF M25 Barnstaple | 2020/02/11 14:20 | Anton Matusevich v Wojciech Marek | 2-6,6-7 |
| ITF M25 Barnstaple | 2020/02/10 10:30 | Wojciech Marek v Adam Jones | 6-2,6-1 |
| ITF M25 Barnstaple | 2020/02/09 10:50 | Wojciech Marek v Sahej Maker | 6-1,6-0 |
| ITF M15 Bressuire | 2020/01/25 17:10 | Quentin Robert v Wojciech Marek | 6-3,6-3 |
| ITF M15 Bressuire | 2020/01/24 12:00 | Wojciech Marek v Ugo Blanchet | 3-6,7-5,6-1 |
| ITF M15 Bressuire | 2020/01/23 10:30 | Alvaro Lopez San Martin v Wojciech Marek | 3-6,6-3,5-7 |
| ITF M15 Bressuire | 2020/01/21 12:35 | Wojciech Marek v Nino Ehrenschneider | 6-3,7-5 |
| ITF M25 Barnstaple | 2020/02/09 12:45 | Josip Krstanovic v Tom Hands | 1-6,6-1,16-18 |
| ITF M25 Shrewsbury | 2019/09/24 12:20 | Luke Johnson v Josip Krstanovic | 6-1,6-4 |
| ITF M25 Shrewsbury | 2019/09/23 13:15 | Daniel Little v Josip Krstanovic | 4-6,4-6 |
| ITF M25 Shrewsbury | 2019/09/23 08:30 | Luke Henley v Josip Krstanovic | 7-6,1-6,9-11 |
| ITF M15 Szekesfehervar | 2019/09/02 08:00 | Josip Krstanovic v Antun Vidak | 6-7,6-7 |
| ITF M15 Szekesfehervar | 2019/09/01 08:00 | Francesco Ferrari v Josip Krstanovic | 3-6,4-6 |
| ITF Serbia F1 Qual | 2017/08/06 09:30 | Calin Manda v Josip Krstanovic | 5-7,6-3,6-4 |
| ITF Austria F5 | 2017/07/31 09:50 | Josip Krstanovic v Michalis Sakellaridis | 6-2,4-6,4-6 |