Stadium: Court 2 Round: 26 Ground: Clay
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/21 16:25 | 스테헬리, 루카 v Tom Gentzsch | 6-4,3-6,2-6 |
| ITF M15 Monastir | 2023/06/13 09:40 | 소아레스 클리어, 길베르트 v Tom Gentzsch | 6-3,6-4 |
| ITF M15 Vaasa | 2023/06/10 08:00 | 프리버그, 칼 v Tom Gentzsch | 6-1,6-1 |
| ITF M15 Vaasa | 2023/06/09 11:10 | Tom Gentzsch v Nicolas Kobelt | 6-3,6-7,6-1 |
| ITF M15 Vaasa | 2023/06/08 08:00 | Tom Gentzsch v 트루스트, 심 | 6-3,6-3 |
| ITF M15 Vaasa | 2023/06/07 08:45 | Tom Gentzsch v 모기니, 가브리엘 | 7-6,6-3 |
| ITF M15 Constanta | 2023/06/01 10:10 | Tom Gentzsch v Moller, Elmer | 0-6,6-3,3-6 |
| ITF M15 Constanta | 2023/05/31 11:40 | Tom Gentzsch v Filip Gabriel Bara | 6-3,6-2 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/19 09:30 | von Der Schulenburg, Jeffrey v Jim Hendrikx | 6-1,6-4 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/18 12:00 | von Der Schulenburg, Jeffrey v Ruben Hartig | 6-1,6-0 |
| ITF M15 Winston-Salem | 2022/11/10 16:50 | von Der Schulenburg, Jeffrey v Samuel, Toby | 1-6,1-6 |
| ITF M15 Winston-Salem | 2022/11/09 18:40 | von Der Schulenburg, Jeffrey v Kang, Kyle | 7-5,6-0 |
| ITF M15 Winston-Salem | 2022/11/08 17:30 | von Der Schulenburg, Jeffrey v 로센스, 마르틴스 | 6-4,6-4 |
| Challenger Charlottesville | 2022/10/30 18:05 | 스미스, 키간 v von Der Schulenburg, Jeffrey | 6-2,7-5 |
| ITF M25 Muttenz | 2022/08/18 07:00 | von Der Schulenburg, Jeffrey v 포니오, 기오바니 | 5-7,6-7 |
| Zug, Switzerland | 2022/07/24 13:35 | 올리엘, 야사이 v von Der Schulenburg, Jeffrey | 6-1,3-6,6-4 |