Stadium: Court 1 Round: 54 Ground: Clay
| ITF M25 Villers Les Nancy | 2021/11/07 09:00 | Melzer, Lennart v Arjun Mehrotra | 2-6,2-6 |
| ITF - M25 Saint-Dizier | 2021/10/31 10:30 | Pierre, Hugo v Melzer, Lennart | 6-2,6-2 |
| ITF M25 Portimao | 2021/10/25 11:15 | Sadaoui, Mehdi v Melzer, Lennart | 6-1,6-1 |
| ITF - M25 Quinta Do Lago | 2021/10/17 09:00 | Melzer, Lennart v Raphael Calzi | 0-6,1-6 |
| ITF - M25 Loulé | 2021/10/11 13:30 | Heger, Tim v Melzer, Lennart | 6-1,6-2 |
| ITF - M25 Loulé | 2021/10/10 12:00 | Rodrigo Beires v Melzer, Lennart | 4-6,0-6 |
| ITF - M25 Setubal | 2021/10/03 11:30 | Simoes, Martim v Melzer, Lennart | 6-0,6-2 |
| ITF M15 Forbach | 2021/09/26 11:20 | Pierre, Hugo v Melzer, Lennart | 6-0,6-1 |
| ITF - M15 Bagnoles-de-l'Orne | 2020/01/12 14:15 | Jardin, Hugo v Alexis Boureau | 2-6,1-6 |
| ITF France F5 Qual | 2018/03/10 12:00 | Ouvrard, Victor v Jardin, Hugo | 6-2,6-3 |