9 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Barja Viveros, Matias Ariel | Habans Aguerrea, Javier | 0-1 | A04 | World Youth Cup 2021 O14-G14 - Open 14 | 2021-08-11 |
| Barja Viveros, Matias Ariel | Suico, Daniel | 1-0 | C62 | World Youth Cup 2021 O14-G14 - Open 14 | 2021-08-11 |
| Barja Viveros, Matias Ariel | Xu, Edison | 0-1 | A07 | World Youth Cup 2021 O14-G14 - Open 14 | 2021-08-11 |
| Barja Viveros, Matias Ariel | Khemlani, Krish | 1-0 | C60 | World Youth Cup 2021 O14-G14 - Open 14 | 2021-08-11 |
| Barja Viveros, Matias Ariel | Kolesov, Gordey | 0-1 | C88 | World Youth Cup 2021 O14-G14 - Open 14 | 2021-08-11 |