Stadium: Court 1 Round: 26 Ground: Hardcourt indoor
| ITF Great Britain F3 | 2017/02/15 10:30 | Tobias Simon v Scott Duncan | 6-2,7-6 |
| ITF M25 Shrewsbury | 2019/09/24 14:10 | Elliott Farmer v Scott Duncan | 1-6,6-2,3-6 |
| Challenger Glasgow | 2019/09/17 16:10 | Johannes Haerteis v Scott Duncan | 6-3,6-3 |
| 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 Shrewsbury | 2019/09/24 10:35 | Ben Jones v Tobias Simon | 5-7,1-6 |
| ITF M25 Mulhouse | 2019/09/14 12:30 | Dan Added v Tobias Simon | 7-6,6-3 |
| ITF M25 Mulhouse | 2019/09/13 10:00 | Gregoire Jacq v Tobias Simon | 4-6,6-7 |
| ITF M25 Mulhouse | 2019/09/12 14:05 | Joffrey De Schepper v Tobias Simon | 7-6,2-6,4-6 |
| ITF M25 Mulhouse | 2019/09/10 12:55 | Tobias Simon v Christopher Heyman | 7-6,6-4 |
| ITF M25 Schlieren | 2019/08/22 11:25 | Benjamin Bonzi v Tobias Simon | 6-2,6-3 |
| ITF M25 Schlieren | 2019/08/21 09:55 | Tobias Simon v Patrik Hartmeier | 6-3,6-3 |
| Challenger Portoroz | 2019/08/14 14:40 | Zdenek Kolar v Tobias Simon | 6-2,6-4 |