Stadium: Court 5 Round: 27 Ground: Hardcourt indoor
| ITF M25 Sunderland | 2020/02/27 10:00 | Eduardo Struvay v Mark Whitehouse | 3-6,4-6 |
| ITF M25 Sunderland | 2020/02/25 12:30 | Alexander Donski v Mark Whitehouse | 6-7,4-6 |
| ITF M25 Glasgow | 2020/02/21 10:30 | Mark Whitehouse v Evan Hoyt | 2-6,6-7 |
| ITF M25 Glasgow | 2020/02/20 11:50 | Mark Whitehouse v Gijs Brouwer | 6-4,6-2 |
| ITF M25 Glasgow | 2020/02/19 11:55 | Petros Chrysochos v Mark Whitehouse | 5-7,7-6,4-6 |
| ITF M25 Glasgow | 2020/02/17 12:30 | Mark Whitehouse v Jack Gibbens | 6-3,6-4 |
| ITF M25 Glasgow | 2020/02/16 10:00 | Mark Whitehouse v Sahej Maker | 4-6,6-1,10-5 |
| ITF M25 Barnstaple | 2020/02/13 09:55 | Patrik Niklas-Salminen v Mark Whitehouse | 6-4,6-1 |
| ITF M25 Sunderland | 2020/02/27 10:00 | Aidan Mchugh v Igor Sijsling | 2-6,5-7 |
| ITF M25 Sunderland | 2020/02/25 11:30 | Evan Hoyt v Igor Sijsling | 2-6,5-7 |
| Challenger Koblenz | 2020/02/18 09:00 | Kacper Zuk v Igor Sijsling | 6-4,3-6,6-7 |
| ITF M25 Nussloch | 2020/01/21 13:30 | Vitaliy Sachko v Igor Sijsling | 7-6,6-2 |
| ITF M15 Antalya | 2019/12/19 09:20 | Benjamin Dhoe v Igor Sijsling | 6-3,6-4 |
| ITF M15 Antalya | 2019/12/17 07:00 | Richard Zusman v Igor Sijsling | 4-6,2-6 |
| ITF M15 Antalya | 2019/12/10 11:00 | Igor Sijsling v Gorazd Srbljak | 6-4,6-4 |
| Challenger - Helsingi | 2019/11/12 14:35 | Jaroslav Pospisil v Igor Sijsling | 7-5,6-2 |