Stadium: Court 20 Round: 25 Ground: Clay
| ITF M25 Heraklion | 2023/11/13 13:45 | Ioannis Kountourakis v Noah Merre | 6-7,1-6 |
| ITF M25 Heraklion | 2023/11/12 13:00 | Ioannis Kountourakis v Tom Varzandeh | 6-3,6-3 |
| ITF M25 Heraklion | 2023/11/07 10:15 | Daniele Rapagnetta v Ioannis Kountourakis | 6-4,7-5 |
| ITF M25 Heraklion | 2023/11/05 11:00 | Kevin Edengren v Ioannis Kountourakis | 2-6,6-7 |
| ITF M25 Heraklion | 2023/11/01 10:10 | Ioannis Kountourakis v Enrico Dalla Valle | 4-6,1-6 |
| ITF M15 Heraklion | 2023/10/25 06:30 | Guy Den Ouden v Ioannis Kountourakis | 7-5,6-4 |
| ITF M15 Heraklion | 2023/10/19 06:30 | Ioannis Kountourakis v Sidane Pontjodikromo | 4-6,6-2,2-6 |
| ITF M15 Heraklion | 2023/10/18 08:10 | Ki Lung NG v Ioannis Kountourakis | 3-6,3-6 |
| ITF M15 Antalya | 2023/11/07 10:10 | Dan Alexandru Tomescu v Branko Djuric | 6-4,6-3 |
| ITF M15 Bad Waltersdorf | 2023/10/08 08:00 | Marcel Zielinski v Branko Djuric | 1-6,2-6 |
| ITF M15 Bad Waltersdorf | 2023/10/07 08:00 | Vlad Andrei Dancu v Branko Djuric | 2-6,7-6,6-7 |
| ITF M15 Bad Waltersdorf | 2023/10/06 10:20 | David Fix v Branko Djuric | 1-6,2-6 |
| ITF M15 Bad Waltersdorf | 2023/10/05 10:55 | Branko Djuric v Jan Kupcic | 6-2,4-6,6-4 |
| ITF M15 Bad Waltersdorf | 2023/10/03 08:00 | Branko Djuric v Davide Galoppini | 6-3,6-4 |
| Challenger Mauthausen | 2023/05/08 09:35 | Matthias Ujvary v Branko Djuric | 6-4,6-2 |
| Challenger Mauthausen | 2023/05/07 09:50 | Branko Djuric v Max Hans Rehberg | 6-4,6-3 |