Stadium: Court 2 Round: 45 Ground: Clay
| Challenger Lyon Qual | 2018/06/09 14:00 | Matteo Martineau v Harri Heliovaara | 6-4,6-1 |
| Challenger Shymkent Qual | 2018/06/02 07:00 | Harri Heliovaara v Tung-Lin Wu | 6-7,3-6 |
| ITF China F5 | 2018/05/13 03:00 | Rigele Te v Harri Heliovaara | 7-5,6-4 |
| ITF China F5 | 2018/05/12 04:40 | Harri Heliovaara v Yuta Shimizu | 6-1,6-1 |
| ITF China F5 | 2018/05/11 05:00 | Kaito Uesugi v Harri Heliovaara | 1-6,2-6 |
| ITF China F5 | 2018/05/10 03:00 | Weiqiang Zheng v Harri Heliovaara | 5-7,1-6 |
| ITF China F5 | 2018/05/08 02:00 | Zihao Xia v Harri Heliovaara | 6-4,3-6,2-6 |
| Challenger Glasgow | 2018/05/04 13:50 | Harri Heliovaara v Matteo Viola | 7-5,2-6,5-7 |
| Challenger Puerto Vallarta Qual | 2018/04/29 17:40 | Hans Hach Verdugo v Felipe Mantilla | 6-2,1-6,5-7 |
| Challenger Puerto Vallarta Qual | 2018/04/28 21:35 | Roberto Maytin v Hans Hach Verdugo | 4-6,1-6 |
| Challenger Leon Qual | 2018/04/21 23:40 | Hans Hach Verdugo v Gonzalo Escobar | 6-7,6-4,1-6 |
| Challenger Panama City Qual | 2018/03/31 21:15 | Hans Hach Verdugo v Pavel Krainik | 6-4,2-6,3-6 |
| Challenger Irving Qual | 2018/03/12 16:00 | Petros Chrysochos v Hans Hach Verdugo | 6-7,6-2,7-5 |
| Challenger Dallas Qual | 2018/01/27 19:10 | Hans Hach Verdugo v Karl Poling | 7-6,4-6,4-6 |
| Challenger Las Vegas Qual | 2017/10/15 19:20 | Takanyi Garanganga v Hans Hach Verdugo | 4-6,6-3,6-1 |
| Challenger Las Vegas Qual | 2017/10/14 18:40 | Boris Kozlov v Hans Hach Verdugo | 2-6,3-6 |