Games played by Ottomar Ladva
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Ladva, O | Antal, T | 1947 | ½-½  |
38 | B84 | 2007 | EU Union-ch U10 |
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| Ladva, O | Nero, G | 1-0 |
34 | B01 | 2007 | EU Union-ch U10 |
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| Ladva, O | Olde, H | 2309 | 0-1 |
44 | B04 | 2007 | Hiiumaa Suvi op |
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| Ladva, O | Tomsia, K | 2035 | 0-1 |
50 | B22 | 2006 | EU-ch U10 |
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| Codenotti, M | Ladva, O | 0-1 |
43 | C54 | 2006 | EU-ch U10 |
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| Ladva, O | Vucic, M | 1964 | 1-0 |
21 | B22 | 2006 | EU-ch U10 |
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| Stella, L | Ladva, O | ½-½ |
37 | C54 | 2006 | EU-ch U10 |
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| Ladva, O | Shabanov, N | 0-1 |
40 | B22 | 2006 | EU-ch U10 |
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| Ladva, O | Delgado Vlaic, A | 1-0 |
31 | C01 | 2006 | EU-ch U10 |
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| Ladva, O | Giroyan, G | 2011 | 0-1 |
46 | B22 | 2006 | EU-ch U10 |
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