Stadium: Centrale Round: 27 Ground: Hardcourt indoor
| ITF Greece F5 | 2018/03/29 09:00 | Gijs Brouwer v Rudolf Molleker | 6-7,1-6 |
| ITF Egypt F6 | 2018/02/21 11:55 | Gijs Brouwer v Rudolf Molleker | 6-0,3-6,6-3 |
| Challenger Maspalomas | 2023/11/28 10:00 | Rudolf Molleker v Oleksii Krutykh | 6-4,4-6,2-6 |
| Challenger Valencia | 2023/11/22 10:00 | Alejandro Moro Canas v Rudolf Molleker | 6-4,6-4 |
| Challenger Valencia | 2023/11/20 16:35 | Rudolf Molleker v Alex Molcan | 6-4,7-5 |
| ITF M25 Antalya | 2023/11/15 11:30 | Rudolf Molleker v Marko Maksimovic | 6-7,2-6 |
| Challenger Ismaning | 2023/11/04 12:00 | Rudolf Molleker v Antoine Bellier | 6-7,2-6 |
| Challenger Ismaning | 2023/11/03 14:10 | Rudolf Molleker v Alibek Kachmazov | 7-5,6-7,6-3 |
| Challenger Ismaning | 2023/10/30 18:50 | Rudolf Molleker v Daniel Masur | 7-6,4-6,6-3 |
| Challenger Hamburg | 2023/10/17 11:30 | Rudolf Molleker v Akira Santillan | 3-6,4-6 |
| Dutch Championships | 2023/12/17 13:00 | Jesper De Jong v Gijs Brouwer | 7-6,6-4 |
| Dutch Championships | 2023/12/16 13:00 | Mees Rottgering v Gijs Brouwer | 0-6,2-6 |
| Dutch Championships | 2023/12/15 14:00 | Christian Lerby v Gijs Brouwer | 0-6,0-6 |
| ATP Metz | 2023/11/08 13:00 | Pierre-Hugues Herbert v Gijs Brouwer | 7-5,6-4 |
| ATP Metz | 2023/11/05 10:30 | Gijs Brouwer v Abedallah Shelbayh | 4-6,7-6,3-6 |
| ATP Metz | 2023/11/04 16:00 | Gijs Brouwer v Mikalai Haliak | 6-3,6-2 |
| Challenger Bergamo | 2023/11/01 10:20 | Gijs Brouwer v Alex Molcan | 6-3,6-7,6-7 |
| Challenger Bergamo | 2023/10/30 16:40 | Gijs Brouwer v Federico Gaio | 6-3,7-5 |