Stadium: Centre Court Round: 27 Ground: Hardcourt indoor
| ITF Hong Kong F6 | 2018/01/06 05:30 | Matteo Viola v Harri Heliovaara | 3-6,6-2,7-6 |
| Challenger Glasgow | 2018/05/03 15:00 | James Ward v Harri Heliovaara | 5-7,4-6 |
| Challenger Glasgow | 2018/05/01 10:45 | Harri Heliovaara v Jonathan Gray | 6-3,6-1 |
| Challenger Glasgow Qual | 2018/04/29 15:00 | Harri Heliovaara v Adrien Bossel | 2-6,7-6,6-4 |
| Challenger Glasgow Qual | 2018/04/28 14:20 | Harri Heliovaara v Scott Duncan | 6-1,6-4 |
| Davise karikas | 2018/04/08 10:30 | Harri Heliovaara v Ricardas Berankis | 2-6,3-6 |
| Davise karikas | 2018/04/07 13:00 | Harri Heliovaara v Laurynas Grigelis | 6-3,1-6,6-3 |
| ITF Israel F3 | 2018/03/24 07:00 | Yannick Vandenbulcke v Harri Heliovaara | 6-2,6-2 |
| ITF Israel F3 | 2018/03/23 07:00 | Patrik Niklas-Salminen v Harri Heliovaara | 3-6,0-6 |
| Challenger Glasgow | 2018/05/02 13:50 | JC Aragone v Matteo Viola | 4-6,6-3,1-6 |
| Challenger Glasgow | 2018/04/30 13:00 | Riccardo Bellotti v Matteo Viola | 1-6,2-6 |
| Challenger Francavilla | 2018/04/24 13:15 | Luca Vanni v Matteo Viola | 6-2,6-7,6-4 |
| Challenger Francavilla Qual | 2018/04/23 08:00 | Matteo Viola v Luca Vanni | 2-6,6-3,3-6 |
| Challenger Francavilla Qual | 2018/04/22 10:40 | Matteo Viola v Alexandre Muller | 7-6,6-4 |
| Challenger Francavilla Qual | 2018/04/21 13:30 | Matteo Viola v Volodymyr Uzhylovskyi | 6-4,6-2 |
| Challenger Alicante | 2018/04/03 08:00 | Matteo Viola v Mario Vilella Martinez | 4-6,2-6 |
| ITF Croatia F3 | 2018/03/24 10:00 | Matteo Viola v Nino Serdarusic | 1-6,5-7 |