Stadium: Centre Court Round: 24 Ground: Hardcourt indoor
| Challenger Szczecin | 2019/09/11 14:00 | Albert Ramos-Vinolas v Johannes Haerteis | 6-2,6-4 |
| Challenger Szczecin | 2019/09/09 12:00 | Johannes Haerteis v Mathieu Perchicot | 2-6,6-4,6-2 |
| Challenger L'Aquila | 2019/08/24 14:55 | Dmitry Popko v Johannes Haerteis | 7-6,6-2 |
| Challenger L'Aquila | 2019/08/22 09:35 | Juan Pablo Ficovich v Johannes Haerteis | 3-6,6-7 |
| Challenger L'Aquila | 2019/08/21 08:00 | Johannes Haerteis v Nino Serdarusic | 7-6,6-3 |
| Challenger L'Aquila | 2019/08/19 09:40 | Riccardo Bonadio v Johannes Haerteis | 4-6,4-6 |
| Challenger Meerbusch | 2019/08/13 09:40 | Johannes Haerteis v Eduard Esteve Lobato | 6-4,7-5 |
| Challenger Augsburg | 2019/08/06 08:00 | Johannes Haerteis v Louis Wessels | 6-7,5-7 |
| Challenger Glasgow | 2019/09/16 09:00 | Karol Drzewiecki v Scott Duncan | 5-7,6-4,3-6 |
| ITF M25 Chiswick | 2019/08/05 18:25 | Ewan Moore v Scott Duncan | 6-3,6-3 |
| ITF M25 Chiswick | 2019/08/05 11:10 | Sean Hodkin v Scott Duncan | 6-7,4-6 |
| ITF M25 Dublin | 2019/08/01 14:25 | Scott Duncan v Simon Carr | 4-6,6-4,6-7 |
| ITF M25 Dublin | 2019/07/31 12:40 | Nicolas Rosenzweig v Scott Duncan | 0-6,3-6 |
| ITF M25 Hong Kong | 2019/06/13 05:55 | Agustin Velotti v Scott Duncan | 7-5,6-4 |
| ITF M25 Hong Kong | 2019/06/12 06:55 | Kaito Uesugi v Scott Duncan | 6-4,4-6,5-7 |
| ITF M25 Hong Kong | 2019/06/11 07:05 | Scott Duncan v Pak Hong Issac Chan | 6-4,6-2 |