Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Monastir | 2021/04/05 09:00 | Fons Van Sambeek v Lukas H Lilleengen | 6-2,7-5 |
| ITF M15 Poitiers | 2021/03/14 14:05 | Raphael Baltensperger v Lukas H Lilleengen | 6-3,6-2 |
| ITF M25 Vale Do Lobo | 2021/03/08 12:00 | Edouard Villoslada v Lukas H Lilleengen | 6-4,4-6,10-8 |
| ITF M25 Vale Do Lobo | 2021/03/07 12:00 | Afonso Portugal v Lukas H Lilleengen | 2-6,2-6 |
| ITF M25 Faro | 2021/03/01 14:00 | Alexis Musialek v Lukas H Lilleengen | 6-3,6-2 |
| ITF M25 Faro | 2021/02/28 12:00 | Tiago Torres v Lukas H Lilleengen | 4-6,2-6 |
| ITF M25 Vale Do Lobo | 2021/02/24 13:30 | Max Andrews v Lukas H Lilleengen | 6-4,6-0 |
| ITF M25 Vale Do Lobo | 2021/02/23 14:30 | Vincent Stouff v Lukas H Lilleengen | 1-6,7-5,10-7 |
| ITF M15 Opatija | 2021/03/23 10:20 | Aleksandre Bakshi v Mattia Frinzi | 6-2,6-3 |
| ITF M15 Opatija | 2021/03/22 13:15 | Stefan Loncar v Mattia Frinzi | 3-6,6-7 |
| ITF M15 Opatija | 2021/03/21 08:00 | Milan Radojkovic v Mattia Frinzi | 0-6,1-6 |
| ITF M15 Rovinj | 2021/03/14 08:30 | Josip Krstanovic v Mattia Frinzi | 6-2,7-6 |
| ITF M15 Porec | 2021/03/09 09:00 | Gergely Madarasz v Mattia Frinzi | 7-5,6-3 |
| ITF M15 Porec | 2021/03/07 11:00 | Roko Horvat v Mattia Frinzi | 1-6,1-6 |
| ITF M25 Trento | 2020/02/26 12:50 | Mattia Frinzi v Mick Veldheer | 1-6,4-6 |
| ITF M25 Trento | 2020/02/24 11:20 | Mattia Frinzi v Maris Sipkovs | 6-0,6-0 |