| Europe - Jeux Olympiques - Qualif. | 05/16 12:30 | - | Mihai Bobocica v Mattias Mongiusti | L | 4-0 | |
| Europe - Jeux Olympiques - Qualif. | 05/15 16:40 | - | Aleksa Gacev v Mattias Mongiusti | L | 4-2 | |
| Europe - Jeux Olympiques - Qualif. | 05/15 09:10 | - | Yaroslav Zhmudenko v Mattias Mongiusti | L | 4-2 | |
| TT Star Series | 05/11 18:24 | - | Mattias Mongiusti v Oleksandr Tymofieiev | L | 0-3 | |
| TT Star Series | 05/11 16:30 | - | Mattias Mongiusti v Artur Grela | L | 1-3 | |
| TT Star Series | 05/11 14:30 | - | Mattias Mongiusti v Tomasz Tomaszuk | L | 1-3 | |
| TT Star Series | 05/10 20:30 | - | Mattias Mongiusti v Szymon Malicki | L | 1-3 | |
| TT Star Series | 05/10 18:00 | - | Mattias Mongiusti v Jakub Kleprlik | L | 0-3 | |
| TT Star Series | 05/10 17:06 | - | Mattias Mongiusti v Jiri Vrablik | L | 0-3 | |
| TT Star Series | 05/10 14:00 | - | Mattias Mongiusti v Radim Bako | L | 1-3 | |
| TT Star Series | 05/09 18:30 | - | Radim Bako v Mattias Mongiusti | L | 3-1 | |
| TT Star Series | 05/09 16:00 | - | Szymon Malicki v Mattias Mongiusti | L | 3-1 | |
| TT Star Series | 05/09 14:30 | - | Martin Olejnik v Mattias Mongiusti | L | 3-1 | |
| TT Star Series | 05/08 21:30 | - | Mattias Mongiusti v Amirreza Abbasi | L | 0-3 | |
| TT Star Series | 05/08 19:30 | - | Mattias Mongiusti v Tomasz Tomaszuk | L | 1-3 | |
| TT Star Series | 05/08 17:00 | - | Mattias Mongiusti v Petr David | L | 1-3 | |
| TT Star Series | 05/08 15:30 | - | Boguslaw Koszyk v Mattias Mongiusti | L | 3-0 | |
| WTT - Feeder Otocec - Qualif. | 03/27 09:00 | 6 | Mattias Mongiusti v Valuch, Alexander | L | 0-3 | |
| WTT Feeder Biella Quals | 12/12 12:00 | 6 | Tugay Yilmaz v Mattias Mongiusti | L | 3-0 | |
| WTT - Feeder Otocec - Qualif. | 10/30 15:00 | 6 | Mattias Mongiusti v Jeongmun Ho | L | 0-3 | |
| European Games | 06/23 08:15 | - | Mattias Mongiusti v Zsolt Peto | L | 1-4 | |
| WTT Feeder Antalya Quals | 03/28 13:25 | - | Cazacu, Alexandru v Mattias Mongiusti | L | 3-0 | |
| WTT Feeder Antalya Quals | 03/27 12:00 | - | Mattias Mongiusti v Peter Muturi | - | Walkover | |
| European Championships | 08/16 11:45 | - | Ioannis Sgouropoulos v Mattias Mongiusti | L | 3-0 | |
| European Championships | 08/15 09:15 | - | Mladenovski, Filip v Mattias Mongiusti | W | 1-3 | |
| European Championships | 08/14 15:40 | - | Eduard Ionescu v Mattias Mongiusti | L | 3-1 | |
| Oman Open U21 Women | 11/10 18:00 | - | Daish, Matthew v Mattias Mongiusti | W | 2-4 | |
| Oman Open U21 Women | 11/10 13:50 | - | Mattias Mongiusti v Gabrielius Camara | L | 0-4 | |
| Oman Open U21 Women | 11/10 09:40 | - | Katsman, Lev v Mattias Mongiusti | L | 4-0 | |
| ITTF European Team Championships, Singles | 08/28 17:00 | - | Luka Mladenovic v Mattias Mongiusti | L | 3-1 |