Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Lubbock | 2021/09/26 15:00 | Constantin Frantzen v Sven Lah | 3-6,6-1,4-10 |
| ITF M25 Fort Worth | 2019/10/21 15:00 | Constantin Frantzen v Spencer Papa | 5-7,3-6 |
| ITF M25 Fort Worth | 2019/10/20 15:00 | Constantin Frantzen v Ricardo Alban | 6-3,6-0 |
| ITF M25 Waco | 2019/10/13 15:00 | Constantin Frantzen v Alexander Lebedev | 6-7,2-6 |
| ITF USA F34 | 2018/11/26 21:15 | Michael Geerts v Constantin Frantzen | 6-7,6-2,6-4 |
| ITF USA F34 | 2018/11/25 16:00 | Maximilian Sinn v Constantin Frantzen | 4-6,3-6 |
| ITF USA F34 | 2018/11/24 16:00 | Trey Hilderbrand v Constantin Frantzen | 1-6,7-5,5-7 |
| ITF USA F39 | 2017/11/29 16:00 | Constantin Frantzen v Karue Sell | 4-6,1-6 |
| ITF M15 Lubbock | 2021/09/30 14:55 | Gijs Brouwer v Mathieu Scaglia | 6-2,6-0 |
| ITF M15 Lubbock | 2021/09/29 16:40 | Mathieu Scaglia v Jacob Brumm | 7-6,6-2 |
| ITF M25 Fayetteville | 2021/09/20 17:00 | Nemanja Malesevic v Mathieu Scaglia | 6-2,6-3 |
| ITF M15 Chornomorsk | 2021/08/30 10:30 | Mathieu Scaglia v Artem Podorozhnyi | 5-7,6-3,3-10 |
| ITF M15 Chornomorsk | 2021/08/30 07:00 | Mathieu Scaglia v Mykhailo Mossur | 6-4,6-2 |
| ITF M25 Poznan | 2021/08/24 08:00 | Marcelo Zormann v Mathieu Scaglia | 6-1,7-5 |
| ITF M25 Grasse | 2021/06/13 09:45 | Robin Bertrand v Mathieu Scaglia | 6-1,6-0 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 09:00 | Mathieu Scaglia v Vasile Antonescu | 2-6,2-6 |