| UTR Pro Winston-Salem | 2023/11/30 21:30 | Lukas Steffen v Luca Pow | 1-6,2-6 |
| UTR Pro Winston-Salem | 2023/11/28 23:59 | Lukas Steffen v Emmett Potter | 3-6,3-6 |
| UTR Pro Winston-Salem | 2023/11/27 22:53 | Lukas Steffen v Alhaqbani, Saud | 4-6,6-7 |
| UTR Pro Tennis Series Winston-Salem | 2022/09/08 18:45 | Veljko Krstic v Lukas Steffen | 4-6,6-4,6-1 |
| UTR Pro Tennis Series Winston-Salem | 2022/09/07 17:30 | Dana Parziale v Lukas Steffen | 6-4,6-6 |
| UTR Pro Tennis Series Florida | 2022/07/06 18:30 | Yatsuk, Ivan v Lukas Steffen | 6-3,2-6,6-6 |
| UTR Pro Tennis Series Florida | 2022/07/05 14:00 | Matthew Fung v Lukas Steffen | 6-2,4-6,6-7 |
| UTR Pro Tennis Series Florida | 2022/07/04 18:30 | Arda Azkara v Lukas Steffen | 7-6,6-3 |
| UTR Pro Winston-Salem | 2023/11/28 19:30 | Nathan, Jamieson v Matija Samardzic | 6-1,5-7,4-6 |
| ITF M15 Novi Sad | 2023/07/24 13:20 | Matija Samardzic v Pavel Verbin | 4-6,4-6 |
| ITF M15 Novi Sad | 2023/07/23 15:00 | Evans, Thomas v Matija Samardzic | 4-6,6-3,7-10 |
| ITF M15 Belgrade | 2023/06/25 09:30 | Edoardo Zanada v Matija Samardzic | 7-5,6-3 |
| Coupe Davis | 2023/06/17 07:30 | Matija Samardzic v Petros Chrysochos | 5-7,2-6 |
| Coupe Davis | 2023/06/14 07:30 | Daniil Glinka v Matija Samardzic | 6-4,6-0 |
| UTR Pro Thessaloniki | 2023/04/30 05:00 | Matija Samardzic v Filip, Vladimir | 6-3,6-4 |
| UTR Pro Thessaloniki | 2023/04/29 08:00 | Matija Samardzic v Axel Bergdahl | 7-5,6-2 |