Stadium: Court 3 Round: 24 Ground: Hardcourt outdoor
| Challenger Burnie | 2020/01/26 23:00 | Takuto Niki v Harri Heliovaara | 6-4,1-6,7-6 |
| Challenger Helsinki | 2019/11/15 14:00 | Harri Heliovaara v Ilya Ivashka | 6-3,1-6,2-6 |
| Challenger Helsinki | 2019/11/14 11:00 | Hugo Grenier v Harri Heliovaara | 1-6,3-6 |
| Challenger Helsinki | 2019/11/13 11:00 | Harri Heliovaara v Hiroki Moriya | 4-6,7-6,6-3 |
| Challenger Helsinki | 2019/11/11 16:10 | Artem Dubrivnyy v Harri Heliovaara | 3-6,2-6 |
| Challenger Playford 2 | 2019/10/30 23:30 | Jay Clarke v Harri Heliovaara | 6-4,6-3 |
| Challenger Playford 2 | 2019/10/29 23:30 | Harri Heliovaara v Mukund Sasikumar | 7-6,6-3 |
| Challenger Playford 2 | 2019/10/28 23:30 | James Ibrahim v Harri Heliovaara | 1-6,2-6 |
| Challenger Burnie | 2020/01/31 00:00 | Yannick Hanfmann v Michail Pervolarakis | 6-4,6-1 |
| Challenger Burnie | 2020/01/30 03:35 | Michail Pervolarakis v Yannick Maden | 6-1,6-0 |
| Challenger Burnie | 2020/01/29 01:00 | Liam Broady v Michail Pervolarakis | 0-6,6-3,6-7 |
| Challenger Burnie | 2020/01/27 03:40 | Michail Pervolarakis v Tobias Simon | 6-3,6-4 |
| Challenger Bendigo | 2020/01/14 00:35 | Marcos Giron v Michail Pervolarakis | 6-3,6-0 |
| Challenger Bendigo | 2020/01/12 23:00 | Michail Pervolarakis v Gerard Granollers-Pujol | 7-6,6-3 |
| ATP Cup | 2020/01/07 07:30 | Michail Pervolarakis v John Millman | 6-4,1-6,6-7 |
| ATP Cup | 2020/01/05 07:30 | Jan-Lennard Struff v Michail Pervolarakis | 6-4,6-1 |