Stadium: Lotto RLP Court Round: 27 Ground: Hardcourt indoor
| Challenger Bratislava | 2019/11/04 10:20 | Federico Gaio v Ruben Bemelmans | 1-6,6-4,6-3 |
| Challenger Eckental | 2019/10/29 17:40 | Ruben Bemelmans v Oscar Otte | 6-4,2-6,3-6 |
| Challenger Eckental | 2019/10/28 14:15 | Ruben Bemelmans v Aslan Karatsev | 6-2,6-3 |
| Challenger Hamburg | 2019/10/23 08:00 | Ruben Bemelmans v Elias Ymer | 7-6,6-7,3-6 |
| Challenger Hamburg | 2019/10/21 14:55 | John-Patrick Smith v Ruben Bemelmans | 5-7,4-6 |
| ATP Antwerp | 2019/10/13 14:35 | Marius Copil v Ruben Bemelmans | 6-4,6-4 |
| Challenger Nur-Sultan 2 | 2019/10/05 06:00 | Illya Marchenko v Ruben Bemelmans | 1-6,7-6,6-4 |
| Challenger Nur-Sultan 2 | 2019/10/04 05:00 | Ruben Bemelmans v Evgeny Donskoy | 6-1,3-6,6-3 |
| Challenger Montevideo | 2019/11/06 17:40 | Thiago Seyboth Wild v Yannick Hanfmann | 7-5,4-6,6-3 |
| Challenger Guayaquil | 2019/11/01 23:40 | Yannick Hanfmann v Federico Coria | 6-4,5-7,4-6 |
| Challenger Guayaquil | 2019/10/31 23:15 | Jaume Munar v Yannick Hanfmann | 4-6,0-6 |
| Challenger Guayaquil | 2019/10/29 20:25 | Guilherme Clezar v Yannick Hanfmann | 3-6,3-6 |
| Challenger Lima | 2019/10/24 21:55 | Thiago Monteiro v Yannick Hanfmann | 1-6,6-3,7-5 |
| Challenger Lima | 2019/10/23 00:55 | Oscar Jose Gutierrez v Yannick Hanfmann | 3-6,3-6 |
| Challenger Ismaning | 2019/10/17 11:00 | Maxime Cressy v Yannick Hanfmann | 4-6,6-4,6-3 |
| Challenger Ismaning | 2019/10/16 14:05 | James Ward v Yannick Hanfmann | 6-7,3-6 |