Stadium: Court 2 Round: 14 Ground: Hardcourt indoor
| ITF M25 Edmonton | 2023/11/01 18:20 | Martin, Andres v Kotzen, Alexander | 6-0,6-3 |
| ITF M25 Saint-Augustin | 2023/10/26 16:30 | 도우가즈, 아지즈 v Kotzen, Alexander | 6-3,7-6 |
| ITF M25 Saint-Augustin | 2023/10/24 17:10 | Kotzen, Alexander v 왈라르트, 엔조 | 6-3,6-4 |
| ITF M25 Southaven | 2023/08/10 22:45 | Kotzen, Alexander v 담, 마르틴 | 3-6,6-3,3-6 |
| ITF M25 Southaven | 2023/08/09 21:35 | 라비찬더, 이스한 v Kotzen, Alexander | 6-7,1-6 |
| ITF M25 Decatur | 2023/08/03 19:20 | Kotzen, Alexander v Jonah Braswell | 2-6,6-0,6-7 |
| ITF M25 Decatur | 2023/08/02 22:15 | 브룸, 야콥 v Kotzen, Alexander | 3-6,1-6 |
| ITF M15 Pittsburgh | 2023/07/27 15:00 | Kotzen, Alexander v Bruno Kuzuhara | 6-4,6-7,2-6 |
| Challenger Hamburg | 2023/10/15 08:00 | Boitan, Gabi Adrian v 바란코 코사노, 자비엘 | 4-6,6-7 |
| Challenger Bratislava | 2023/10/10 09:00 | 파울슨, 안드루 v Boitan, Gabi Adrian | 6-4,6-3 |
| Challenger Bratislava | 2023/10/09 08:30 | 일켈, 켐 v Boitan, Gabi Adrian | 2-6,1-6 |
| Challenger Bratislava | 2023/10/08 09:00 | Boitan, Gabi Adrian v 코필, 마리우스 | 3-6,6-4,7-6 |
| Challenger Sibiu | 2023/09/18 09:20 | 헤메리, 칼빈 v Boitan, Gabi Adrian | 2-6,7-5,6-3 |
| Challenger Sibiu | 2023/09/17 10:30 | Matsuda, Ryuki v Boitan, Gabi Adrian | 3-6,1-6 |
| ITF M15 Bucharest | 2023/09/02 08:00 | 파즈, 후안 파블로 v Boitan, Gabi Adrian | 3-6,6-3,6-1 |
| ITF M15 Bucharest | 2023/09/01 10:55 | 플로레스, 제시 v Boitan, Gabi Adrian | 6-7,3-6 |