Stadium: Table 2 Round: 6
| WTT Feeder - Biella - Kval | 2023/12/12 12:00 | Tugay Yilmaz v Mattias Mongiusti | L | 3-0 |
| WTT Feeder - Otocec - Kval | 2023/10/30 15:00 | Mattias Mongiusti v Jeongmun Ho | L | 0-3 |
| Europaspelen | 2023/06/23 08:15 | Mattias Mongiusti v Zsolt Peto | L | 1-4 |
| WTT Feeder - Antalya - Kval | 2023/03/28 13:25 | Alexandru Cazacu v Mattias Mongiusti | L | 3-0 |
| EM | 2022/08/16 11:45 | Ioannis Sgouropoulos v Mattias Mongiusti | L | 3-0 |
| EM | 2022/08/15 09:15 | Filip Mladenovski v Mattias Mongiusti | W | 1-3 |
| EM | 2022/08/14 15:40 | Eduard Ionescu v Mattias Mongiusti | L | 3-1 |
| Oman Open - U21 - Damer | 2021/11/10 18:00 | Matthew Daish v Mattias Mongiusti | W | 2-4 |
| Challenger Series TT | 2024/03/08 11:30 | Alexander Valuch v Liang Qiu | L | 1-3 |
| Challenger Series TT | 2024/03/08 08:50 | Alexander Valuch v Mohammad Mousavi | L | 1-3 |
| Challenger Series TT | 2024/03/07 20:10 | Alexander Valuch v Zhenlong Liu | W | 3-0 |
| Challenger Series TT | 2024/03/07 15:30 | Alexander Valuch v Kirill Fadeev | W | 3-2 |
| Challenger Series TT | 2024/03/07 13:30 | Alexander Valuch v Yuma Hoshi | W | 3-2 |
| Challenger Series TT | 2024/03/07 10:10 | Haruki Harada v Alexander Valuch | L | 3-0 |
| Challenger Series TT | 2024/03/07 08:10 | Alexander Valuch v Carlo Rossi | W | 3-2 |
| Challenger Series TT | 2024/03/05 13:10 | Alexander Valuch v Eusebio Vos | W | 3-1 |