Stadium: Center Round: 25 Ground: Clay
| ITF M15 Kamen | 2024/06/24 12:00 | Taym Alazmeh v Jonas P Hartenstein | 3-6,5-7 |
| ITF M15 Kamen | 2024/06/24 08:30 | Michalis Sakellaridis v Jonas P Hartenstein | 2-6,3-6 |
| ITF M15 Koszalin | 2024/06/12 07:00 | Maciej Rajski v Jonas P Hartenstein | 6-4,6-2 |
| ITF M15 Koszalin | 2024/06/10 14:00 | Kacper Szymkowiak v Jonas P Hartenstein | 7-5,5-7,9-11 |
| ITF M15 Orange Park | 2024/04/30 18:40 | Juan I Cabrera v Jonas P Hartenstein | 3-6,1-6 |
| ITF M25 Trnava | 2023/11/07 11:10 | Matvey Minin v Jonas P Hartenstein | 6-3,6-7,10-6 |
| ITF M25 Trnava | 2023/11/06 11:00 | Patrik Homola v Jonas P Hartenstein | 2-6,2-6 |
| ITF M25 Pardubice | 2023/09/20 12:45 | Jonas P Hartenstein v Maxime Chazal | 3-6,4-6 |
| ITF M25 Mungia-Laukariz | 2024/06/20 14:55 | Frederico Ferreira Silva v Svyatoslav Gulin | 6-7,7-5,6-1 |
| ITF M25 Mungia-Laukariz | 2024/06/19 10:30 | Ian Luca Cervantes Tomas v Svyatoslav Gulin | 2-6,2-6 |
| ITF M25 Mungia-Laukariz | 2024/06/18 14:35 | Yaroslav Demin v Svyatoslav Gulin | 3-6,5-7 |
| ITF M25 Kursumlijska Banja | 2024/06/06 07:00 | Martyn Pawelski v Svyatoslav Gulin | 6-2,6-2 |
| ITF M25 Kursumlijska Banja | 2024/06/05 06:50 | Kristjan Tamm v Svyatoslav Gulin | 3-6,4-6 |
| ITF M25 Kursumlijska Banja | 2024/06/04 06:30 | Timothy Carlsson Seger v Svyatoslav Gulin | 4-6,4-6 |
| ITF M25 Kursumlijska Banja | 2024/06/03 09:30 | Mihail Ivanov v Svyatoslav Gulin | 3-6,1-6 |
| ITF M25 Kursumlijska Banja | 2024/06/02 06:30 | Caheer Warik v Svyatoslav Gulin | 3-6,2-6 |