Round: 62 Ground: Hardcourt outdoor
| ITF M25 Biel | 2021/03/30 11:55 | Otto Virtanen v Yann Marti | 6-3,6-3 |
| ITF M25 Biel | 2021/03/29 12:05 | Yann Marti v Marvin Moeller | 6-4,6-7,10-5 |
| ITF - M25 Trimbach | 2021/03/10 12:00 | Yann Marti v Staeheli, Luca | 6-2,6-3 |
| ITF - M25 Trimbach | 2021/03/09 10:30 | Yann Marti v Lewie Lane | 6-2,6-2 |
| ITF - M25 Trimbach | 2021/03/08 11:25 | Yann Marti v Raffaele Mariani | 6-1,6-4 |
| ITF - M15 Grenoble | 2021/02/07 14:25 | Federico Iannaccone v Yann Marti | 6-7,7-6,10-7 |
| ITF M15 Bratislava | 2020/11/25 13:45 | Yann Marti v Simon, Tobias | 3-6,6-7 |
| ITF M15 Bratislava | 2020/11/24 09:00 | Yann Marti v Shcherba, Vitalii | 6-0,6-1 |
| ITF M15 Kaarst | 2019/02/05 14:00 | Botic Van De Zandschulp v Greven, Marvin | 6-0,6-0 |
| ITF Turkey F7 | 2018/02/17 11:00 | Georgii Kravchenko v Greven, Marvin | 7-5,6-2 |
| Turkey F6, Singles Qualifying | 2018/02/10 06:00 | Bogdan Bobrov v Greven, Marvin | 6-0,6-2 |
| ITF Germany F3 | 2018/01/30 13:50 | Simon, Tobias v Greven, Marvin | 7-6,6-4 |
| ITF Turkey F45 Qual | 2017/11/25 06:30 | Greven, Marvin v Gore, Kaya | 4-6,6-7 |
| ITF Turkey F44 | 2017/11/21 07:15 | Luca Giacomini v Greven, Marvin | 6-1,1-6,6-3 |
| ITF Turkey F44 | 2017/11/20 07:15 | Melnic, Vladislav v Greven, Marvin | 6-7,6-4,6-7 |
| ITF Turkey F44 | 2017/11/19 07:15 | Bilgin, Kerim Han v Greven, Marvin | 2-6,2-6 |