| ITF France F8 Qual | 04/15 08:00 | 54 | Zgombic, Fran Zvonimir v Masse, Valentin | 7-6,6-0 | |
| ITF Greece F5 | 04/05 06:30 | 25 | Zgombic, Fran Zvonimir v Callahan, Hunter | 3-6,1-6 | |
| ITF Greece F5 | 04/03 06:30 | 62 | Zgombic, Fran Zvonimir v Rose, Joshua | 6-4,7-6 | |
| ITF Greece F5 | 04/02 06:30 | 62 | Zgombic, Fran Zvonimir v Kunz, Giordan | 7-5,4-6,6-1 | |
| ITF Greece F4 | 03/30 06:30 | 26 | Alex Molcan v Zgombic, Fran Zvonimir | 6-4,6-3 | |
| ITF Greece F4 | 03/29 06:30 | 25 | Zgombic, Fran Zvonimir v Stanek, Robin | 6-3,6-2 | |
| ITF Greece F4 | 03/27 06:30 | 62 | Zgombic, Fran Zvonimir v Ahti, Ville-Petteri | 7-5,6-1 | |
| ITF Greece F4 | 03/26 06:30 | 62 | Zgombic, Fran Zvonimir v Bothwell, Samuel | 7-6,6-2 | |
| ITF Greece F4 | 03/25 07:00 | 62 | Zgombic, Fran Zvonimir v Davies, George | 6-2,6-0 | |
| ITF Greece F3 | 03/19 07:30 | 62 | Zgombic, Fran Zvonimir v Marc-Andrea Huesler | 2-6,3-6 | |
| ITF Greece F3 | 03/18 09:30 | 62 | Zgombic, Fran Zvonimir v Michalis Sakellaridis | 6-4,6-0 | |
| Italie F3, Qualifications Simples | 03/05 13:00 | 54 | Ruepke, Lukas v Zgombic, Fran Zvonimir | 6-4,6-4 | |
| Italie F3, Qualifications Simples | 03/04 13:00 | 54 | Remy Bertola v Zgombic, Fran Zvonimir | 6-4,3-6,6-7 | |
| ITF Italy F2 Qual | 02/25 13:00 | 54 | Trusendi, Walter v Zgombic, Fran Zvonimir | 6-4,6-4 | |
| Spain F6, Singles | 02/19 11:00 | 62 | Zgombic, Fran Zvonimir v Billy Harris | 3-6,1-6 | |
| Spain F6, Singles | 02/18 12:00 | 62 | Sylvester Emmanuel v Zgombic, Fran Zvonimir | 6-4,4-6,2-6 | |
| ITF Great Britain F2 | 02/05 10:00 | 44 | Zgombic, Fran Zvonimir v Stoute, Isaac | 1-6,6-2,6-7 | |
| ITF Great Britain F1 | 02/02 11:50 | 26 | Zgombic, Fran Zvonimir v O'Mara, Jonny | 4-6,4-6 | |
| ITF Great Britain F1 | 01/31 10:00 | 25 | Crepaldi, Erik v Zgombic, Fran Zvonimir | 2-6,3-6 | |
| ITF Great Britain F1 | 01/30 10:00 | 44 | Emile Hudd v Zgombic, Fran Zvonimir | 1-6,2-6 | |
| ITF Germany F1 | 01/11 16:15 | 25 | Simon, Tobias v Zgombic, Fran Zvonimir | 6-3,1-6,6-3 | |
| ITF Germany F1 | 01/11 08:00 | - | Simon, Tobias v Zgombic, Fran Zvonimir | 6-3,1-6,5-3 | |
| ITF Germany F1 Qual | 01/09 14:50 | 44 | Zgombic, Fran Zvonimir v Born, Yannick Stephan | 6-4,3-6,7-5 | |
| ITF Germany F1 Qual | 01/09 09:00 | 44 | Zgombic, Fran Zvonimir v Kaelin, Yanik | 6-3,6-2 | |
| ITF Norway F3 | 10/31 10:25 | 25 | Zgombic, Fran Zvonimir v Kirill Kivattsev | 5-7,2-6 | |
| ITF Norway F2 | 10/25 14:05 | 25 | Zgombic, Fran Zvonimir v Viktor Durasovic | 2-6,4-6 | |
| ITF Portugal F12 | 10/04 11:00 | 25 | Zgombic, Fran Zvonimir v Gigounon, Germain | 1-6,4-6 | |
| ITF Portugal F12 Qual | 10/03 13:30 | 62 | Zgombic, Fran Zvonimir v Blanco Damea, Alvaro | 6-2,6-0 | |
| ITF Portugal F11 | 09/27 10:00 | 25 | Ricardo Rodriguez v Zgombic, Fran Zvonimir | 6-3,7-5 | |
| ITF India F5 | 09/14 07:15 | 26 | Zgombic, Fran Zvonimir v Siddharth Vishwakarma | 3-6,2-6 |