Stadium: Court 2 Round: 14 Ground: Clay
| ITF M15 Monastir | 2021/05/25 08:30 | David Poljak v Naoki Nakagawa | 6-7,7-6,1-6 |
| ITF M15 Monastir | 2021/05/20 08:25 | David Poljak v Jeremy Beale | 6-7,1-6 |
| ITF M15 Monastir | 2021/05/18 10:20 | David Poljak v Louis Tessa | 7-6,6-4 |
| Challenger Salinas 2 | 2021/04/27 14:30 | Gonzalo Villanueva v David Poljak | 5-7,7-6,7-6 |
| Challenger Salinas 2 | 2021/04/26 18:35 | Miguel M Larrea v David Poljak | 3-6,0-6 |
| Challenger Salinas | 2021/04/18 15:00 | Tak Khunn Wang v David Poljak | 6-3,6-3 |
| ITF M15 Sharm El Sheikh | 2021/04/10 07:30 | Mukund Sasikumar v David Poljak | 6-3,6-2 |
| ITF M15 Sharm El Sheikh | 2021/04/09 07:30 | David Poljak v Luke Johnson | 6-3,1-6,6-3 |
| ITF M15 Alkmaar | 2020/08/27 09:00 | Sem Verbeek v Clement Geens | 2-6,0-6 |
| ITF M15 Alkmaar | 2020/08/24 13:00 | Valentin Royer v Sem Verbeek | 5-7,6-4,7-10 |
| ITF M15 Alkmaar | 2020/08/24 08:00 | Lodewijk Weststrate v Sem Verbeek | 4-6,2-6 |
| Challenger Indian Wells | 2020/03/04 18:00 | Sem Verbeek v Jannik Sinner | 0-6,1-6 |
| Challenger Indian Wells | 2020/03/03 18:00 | Sem Verbeek v Maxime Cressy | 7-6,6-3 |
| Challenger Indian Wells | 2020/03/02 18:00 | Stephane Robert v Sem Verbeek | 4-6,4-6 |
| Challenger Bendigo | 2020/01/12 04:15 | Sho Shimabukuro v Sem Verbeek | 6-7,6-4,6-4 |
| Challenger Fairfield | 2019/10/08 18:25 | Sem Verbeek v Michail Pervolarakis | 3-6,3-6 |