Stadium: Center Court Round: 14 Ground: Clay
| ITF M15 Opatija | 2024/03/21 08:55 | Oleksandr Ovcharenko v Duje Markovina | 6-4,6-2 |
| ITF M15 Opatija | 2024/03/20 08:30 | Duje Markovina v Jan Kupcic | 6-2,6-4 |
| Challenger Split | 2023/04/09 08:00 | Duje Markovina v Juan Bautista Torres | 1-6,2-6 |
| ITF M15 Porec | 2023/03/08 11:25 | Riccardo Balzerani v Duje Markovina | 6-1,6-1 |
| UTR Pro Zadar | 2023/03/04 11:00 | Milan Drinic v Duje Markovina | 6-3,6-4 |
| UTR Pro Zadar | 2023/03/03 08:00 | Andrej Nedic v Duje Markovina | 6-3,6-3 |
| UTR Pro Zadar | 2023/03/02 12:37 | Domagoj Biljesko v Duje Markovina | 6-1,6-1 |
| UTR Pro Zadar | 2023/02/28 08:30 | Duje Markovina v Matej Galik | 3-6,3-6 |
| Challenger Barcelona | 2024/03/31 11:00 | Robert Strombachs v Ryan Nijboer | 3-6,0-6 |
| Challenger Pau | 2024/02/19 13:05 | James Trotter v Robert Strombachs | 6-4,7-5 |
| Challenger Pau | 2024/02/18 15:15 | Alexis Gautier v Robert Strombachs | 3-6,3-6 |
| Challenger Glasgow | 2024/02/15 10:00 | Hamish Stewart v Robert Strombachs | 1-6,7-5,6-1 |
| Challenger Glasgow | 2024/02/14 14:40 | Hamish Stewart v Robert Strombachs | 1-6,7-5,6-1 |
| Challenger Glasgow | 2024/02/12 14:00 | Robert Strombachs v Anton Matusevich | 7-6,6-1 |
| Davis Kupa | 2024/02/02 17:10 | Viktor Durasovic v Robert Strombachs | 7-5,6-2 |
| ITF M25 Nussloch | 2024/01/26 18:00 | Robert Strombachs v Alastair Gray | 7-5,5-7,4-6 |