| Luxembourg Open Qual | 2023/05/04 09:20 | 소넨슈인, 아론 v Holzmer, Leo | L | 2-0 |
| Portugal Int. Qual | 2023/03/08 09:00 | 스폴자렉, 필립 v Holzmer, Leo | L | 2-0 |
| Slovenia Int. Qual | 2022/05/18 10:40 | Holzmer, Leo v 메우스버거, 킬리안 | L | 0-2 |
| Luxembourg Open Qual | 2022/05/05 10:20 | Holzmer, Leo v Ducrot, Louis | L | 0-2 |
| Dutch Int. Qual | 2022/04/13 09:00 | Dalvi, Nadeem v Holzmer, Leo | L | 2-0 |
| Slovenia Future Series Qual | 2021/11/25 10:10 | Holzmer, Leo v Ivan Pejoski | W | 2-0 |
| Hellas Int. Qual | 2021/09/02 07:00 | Antoska, Andrej v Holzmer, Leo | L | 2-0 |
| European Team Championships | 2020/02/12 11:30 | 키위크엘, 조란 v Holzmer, Leo | L | 2-0 |