Stadium: Court 9 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Helsinki | 2021/06/01 07:00 | Oskar Antinheimo v Roni Mikael Hietaranta | 2-6,1-6 |
| ITF M15 Helsinki | 2021/05/31 10:00 | Otto Leikola v Roni Mikael Hietaranta | 1-6,0-6 |
| ITF M15 Kouvola | 2021/05/26 14:40 | Luca Castelnuovo v Roni Mikael Hietaranta | 6-3,4-6,6-3 |
| ITF M15 Kouvola | 2021/05/25 08:30 | Roni Mikael Hietaranta v Jussi Salmio | 6-1,6-1 |
| ITF M15 Parnu | 2020/11/04 08:00 | Mattias Siimar v Roni Mikael Hietaranta | 6-3,6-2 |
| ITF M15 Parnu | 2020/11/02 11:00 | Roni Mikael Hietaranta v Adrien Burdet | 5-7,6-2,13-11 |
| ITF M15 Parnu | 2019/10/30 12:25 | Lasse Muscheites v Roni Mikael Hietaranta | 6-4,6-1 |
| ITF M15 Parnu | 2019/10/29 08:00 | Roni Mikael Hietaranta v Marcus Mansson | 2-6,7-6,10-4 |
| French Open | 2021/05/24 09:55 | Bernabe Zapata Miralles v Kyrian Jacquet | 4-6,6-1,6-4 |
| ATP Lyon | 2021/05/16 08:00 | Kyrian Jacquet v Thiago Seyboth Wild | 1-6,4-6 |
| ITF M15 Majadahonda | 2021/05/05 11:50 | Kyrian Jacquet v Ivan Gakhov | 6-4,6-3 |
| ITF M15 LPD Gran Canaria | 2021/05/02 09:30 | Alvaro Lopez San Martin v Kyrian Jacquet | 7-6,6-7,7-5 |
| ITF M15 LPD Gran Canaria | 2021/05/01 11:20 | Eduard Esteve Lobato v Kyrian Jacquet | 7-6,1-6,2-6 |
| ITF M15 LPD Gran Canaria | 2021/04/30 16:00 | Kyrian Jacquet v Ergi Kirkin | 6-3,6-2 |
| ITF M15 LPD Gran Canaria | 2021/04/29 13:55 | Kyrian Jacquet v Federico Iannaccone | 6-2,6-1 |
| ITF M15 LPD Gran Canaria | 2021/04/28 13:20 | Kyrian Jacquet v Jose Joaquin M Cisneros | 6-1,6-4 |