Stadium: Court 1 Round: 54 Ground: Clay
| ITF M15 - Addis Ababa | 2023/05/15 09:25 | Denis Constantin Spiridon v Lazar Markovic | 6-0,6-3 |
| ITF M15 - Addis Ababa | 2023/05/14 07:00 | Lazar Markovic v Alexey Dubinin | 7-6,6-4 |
| ITF M15 - Orange Park | 2023/05/01 14:00 | Lazar Markovic v Ryan Haviland | 6-7,3-6 |
| ITF M15 - Tacarigua | 2023/04/24 18:00 | Leo Vithoontien v Lazar Markovic | 6-1,6-1 |
| ITF M15 - Tacarigua | 2023/04/23 20:30 | Maxwell Weishan v Lazar Markovic | 3-6,1-6 |
| ITF M15 - Sharm El Sheikh | 2023/03/26 08:00 | Lazar Markovic v Karim Ibrahim | 5-7,5-7 |
| ITF M25 - Palmanova | 2023/03/20 14:00 | Lazar Markovic v Peetu Pohjola | 6-7,1-6 |
| ITF M25 - Palmanova | 2023/03/12 12:00 | Lazar Markovic v Marcel Politowicz | 5-7,2-6 |
| ITF M15 - Addis Ababa | 2023/05/18 06:45 | Guelfo Baldovinetti v Mario G Fernandez | 4-6,2-6 |
| ITF M15 - Addis Ababa | 2023/05/17 06:00 | Guelfo Baldovinetti v Dylan Salton | 6-4,7-5 |
| ITF M15 - Addis Ababa | 2023/05/15 08:00 | Mattias Southcombe v Guelfo Baldovinetti | 5-7,6-7 |
| ITF M15 - Alaminos-Larnaca | 2023/05/01 06:00 | Asaf Friedler v Guelfo Baldovinetti | 6-2,6-0 |
| ITF M15 - Alaminos-Larnaca | 2023/04/30 09:30 | Cristian Campese v Guelfo Baldovinetti | 4-6,1-6 |
| ITF M15 - Alaminos-Larnaca | 2023/04/25 07:00 | Samuele Pieri v Guelfo Baldovinetti | 6-3,6-0 |
| ITF M15 - Alaminos-Larnaca | 2023/04/24 07:00 | Christos Avraam v Guelfo Baldovinetti | 4-6,6-7 |
| ITF M25 - Dubrovnik | 2023/04/02 07:00 | Aleksa Mardjonovic v Guelfo Baldovinetti | 6-1,6-0 |