18 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Blumel, Otto | Vanek, Ladislav | 0-1 | C02 | Round 2: Blumel, Otto - Vanek, Ladislav | 2024-05-07 |
| Blumel, Otto | Muzika, Paul | 0-1 | D01 | Ceske Budejovice Open A | 2023-07-08 |
| Blumel, Otto | Pisar, Tomas | 1-0 | A05 | Ceske Budejovice Open A | 2023-07-06 |
| Blumel, Otto | Ponnio, Toni | 0-1 | B40 | Ceske Budejovice Open A | 2023-07-04 |
| Blumel, Otto | Dobrowolski, Kamil | 1/2-1/2 | D00 | Ceske Budejovice Open A | 2023-07-02 |
| Blumel, Otto | Schneider, Jana | 0-1 | C50 | Prague Open | Czech Tour | 2023-01-06 |
| Blumel Otto | Hiermann Dietmar | 1-0 | C56 | QCC | 2022-07-01 |
| Blumel, Otto | Mikes, Jan | 0-1 | B13 | Open Praha 2022 | 2022-01-07 |