Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. G Holtey vs L Piazzini |
| 1-0 | 41 | 1931 | ARG-ch | D40 Queen's Gambit Declined, Semi-Tarrasch |
2. J Bolbochan vs L Piazzini |
| 1-0 | 66 | 1933 | ARG-ch m | D40 Queen's Gambit Declined, Semi-Tarrasch |
3. L Piazzini vs J Bolbochan |
| 1-0 | 75 | 1933 | ARG-ch m | D65 Queen's Gambit Declined, Orthodox, Rubinstein Attack, Main line |
4. J Bolbochan vs L Piazzini |
| ½-½ | 29 | 1933 | ARG-ch m | D39 Queen's Gambit Declined, Ragozin, Vienna Variation |
5. J Bolbochan vs L Piazzini |
| ½-½ | 48 | 1933 | ARG-ch m | D11 Queen's Gambit Declined Slav |
6. L Piazzini vs J Bolbochan |
| 1-0 | 41 | 1933 | ARG-ch m | C49 Four Knights |
7. J Bolbochan vs L Piazzini |
| ½-½ | 54 | 1933 | ARG-ch m | D13 Queen's Gambit Declined Slav, Exchange Variation |
8. L Piazzini vs J Bolbochan |
 | 1-0 | 28 | 1933 | ARG-ch m | C62 Ruy Lopez, Old Steinitz Defense |
9. L Piazzini vs J Bolbochan |
| 1-0 | 41 | 1933 | ARG-ch m | C48 Four Knights |
10. J Traian Iliesco vs L Piazzini |
| 0-1 | 32 | 1934 | Mar del Plata | A02 Bird's Opening |
11. L Piazzini vs A Schwartzman |
| 0-1 | 66 | 1934 | Mar del Plata | A47 Queen's Indian |
12. J Bolbochan vs L Piazzini |
| 1-0 | 36 | 1934 | Mar del Plata | D59 Queen's Gambit Declined, Tartakower |
13. L Piazzini vs G Holtey |
| 1-0 | 45 | 1934 | Mar del Plata | D68 Queen's Gambit Declined, Orthodox Defense, Classical |
14. L Piazzini vs A Aponte |
| 1-0 | 52 | 1934 | Mar del Plata | D12 Queen's Gambit Declined Slav |
15. L Piazzini vs C Guimard |
| 0-1 | 55 | 1934 | Mar del Plata | C14 French, Classical |
16. B H Villegas vs L Piazzini |
| ½-½ | 30 | 1934 | Mar del Plata | D18 Queen's Gambit Declined Slav, Dutch |
17. R Grau vs L Piazzini |
| ½-½ | 21 | 1934 | Mar del Plata | D63 Queen's Gambit Declined, Orthodox Defense |
18. J Molina vs L Piazzini |
| ½-½ | 41 | 1934 | Mar del Plata | C44 King's Pawn Game |
19. L Piazzini vs V Fenoglio |
| 1-0 | 53 | 1934 | Mar del Plata | A46 Queen's Pawn Game |
20. L Piazzini vs C Hounie Fleurquin |
| 1-0 | 20 | 1934 | Mar del Plata | B13 Caro-Kann, Exchange |
21. L Piazzini vs J C Balparda |
| ½-½ | 30 | 1934 | Mar del Plata | D51 Queen's Gambit Declined |
22. J B Hernandez vs L Piazzini |
| 1-0 | 100 | 1934 | Mar del Plata | C01 French, Exchange |
23. L Piazzini vs L Palau |
| ½-½ | 42 | 1934 | South American Championship 1934/35 | D32 Queen's Gambit Declined, Tarrasch |
24. L Piazzini vs M Castillo |
| ½-½ | 48 | 1934 | South American Championship 1934/35 | D70 Neo-Grunfeld Defense |
25. J Molina vs L Piazzini |
| 0-1 | 38 | 1934 | South American Championship 1934/35 | D02 Queen's Pawn Game |