Stadium: Court 5 Round: 25 Ground: Hardcourt indoor
| ITF - Danderyd M15 | 2023/09/21 12:15 | Harry Wendelken v Johannes Ingildsen | 3-6,6-3,6-1 |
| ITF - Idanha-A-Nova M25 | 2023/08/31 09:55 | Johannes Ingildsen v Harry Wendelken | 7-5,6-0 |
| ITF - Falun M25 | 2023/09/25 07:50 | Johannes Ingildsen v Oliver Ojakaar | 6-2,6-2 |
| ITF - Falun M25 | 2023/09/24 08:00 | Johannes Ingildsen v Eldin Nokic | 6-0,6-1 |
| ITF - Danderyd M15 | 2023/09/21 12:15 | Harry Wendelken v Johannes Ingildsen | 3-6,6-3,6-1 |
| ITF - Danderyd M15 | 2023/09/20 11:20 | Albert Saar v Johannes Ingildsen | 2-6,3-6 |
| ITF - Sintra M25 | 2023/09/06 12:05 | Johannes Ingildsen v Martyn Pawelski | 1-6,2-6 |
| ITF - Idanha-A-Nova M25 | 2023/09/01 08:00 | Robin Bertrand v Johannes Ingildsen | 6-2,6-1 |
| ITF - Idanha-A-Nova M25 | 2023/08/31 09:55 | Johannes Ingildsen v Harry Wendelken | 7-5,6-0 |
| ITF - Idanha-A-Nova M25 | 2023/08/30 10:00 | Francisco Rocha v Johannes Ingildsen | 2-6,6-2,4-6 |
| ITF - Danderyd M15 | 2023/09/23 08:00 | Mats Rosenkranz v Harry Wendelken | 6-4,2-6,6-4 |
| ITF - Danderyd M15 | 2023/09/22 09:40 | Harry Wendelken v Tibo Colson | 6-4,6-2 |
| ITF - Danderyd M15 | 2023/09/21 12:15 | Harry Wendelken v Johannes Ingildsen | 3-6,6-3,6-1 |
| ITF - Danderyd M15 | 2023/09/20 10:05 | Harry Wendelken v George Houghton | 7-6,2-6,6-2 |
| ITF - Sintra M25 | 2023/09/10 09:30 | Jaime Faria v Harry Wendelken | 6-3,2-6,6-7 |
| ITF - Sintra M25 | 2023/09/09 10:30 | Harry Wendelken v Henrique Rocha | 6-2,3-6,7-5 |
| ITF - Sintra M25 | 2023/09/08 09:30 | Harry Wendelken v Rodrigo Fernandes | 6-4,3-6,6-2 |
| ITF - Sintra M25 | 2023/09/06 11:20 | Harry Wendelken v Jake Van Emburgh | 6-3,6-4 |