| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. M Romi vs Ugo Cala |
| 1-0 | 40 |
1931 |
Milano C.It. | A45 Queen's Pawn Game |
| 2. L Barden vs Ugo Cala |
| ½-½ | 79 |
1952 |
Helsinki ol (Men) | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 3. Ugo Cala vs Pirc |
| 0-1 | 65 |
1952 |
Helsinki ol (Men) | B85 Sicilian, Scheveningen, Classical |
| 4. Ugo Cala vs H Platz |
| 0-1 | 34 |
1952 |
Helsinki ol (Men) | D37 Queen's Gambit Declined |
| 5. Ugo Cala vs E Pedersen |
| 1-0 | 41 |
1952 |
Helsinki ol (Men) | C47 Four Knights |
| 6. I Johansson vs Ugo Cala |
| ½-½ | 46 |
1952 |
Helsinki ol (Men) | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
| 7. Ugo Cala vs A Beni |
| 0-1 | 31 |
1952 |
Helsinki ol (Men) | D79 Neo-Grunfeld, 6.O-O, Main line |
| 8. Ugo Cala vs Sliwa |
| ½-½ | 42 |
1952 |
Helsinki ol (Men) | C47 Four Knights |
| 9. Ugo Cala vs T Florian |
| 0-1 | 70 |
1952 |
Helsinki ol (Men) | B17 Caro-Kann, Steinitz Variation |
| 10. Y Porat vs Ugo Cala |
| 1-0 | 44 |
1952 |
Helsinki ol (Men) | D69 Queen's Gambit Declined, Orthodox Defense, Classical, 13.de |
| 11. Ugo Cala vs Morcken |
| 1-0 | 59 |
1952 |
Helsinki ol (Men) | B92 Sicilian, Najdorf, Opocensky Variation |
| 12. R Ortega vs Ugo Cala |
| 1-0 | 71 |
1952 |
Helsinki ol (Men) | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
| 13. G Noradounghian vs Ugo Cala |
| 1-0 | 29 |
1954 |
Amsterdam ol (Men) | C05 French, Tarrasch |
| 14. Ugo Cala vs W Nash |
| 1-0 | 49 |
1954 |
Amsterdam ol (Men) | C47 Four Knights |
| 15. Ugo Cala vs C Rivera |
| ½-½ | 24 |
1954 |
Amsterdam ol (Men) | E18 Queen's Indian, Old Main line, 7.Nc3 |
| 16. W Nash vs Ugo Cala |
| ½-½ | 105 |
1954 |
Amsterdam ol (Men) | C05 French, Tarrasch |
| 17. N Divinsky vs Ugo Cala |
| ½-½ | 41 |
1954 |
Amsterdam ol (Men) pre-II | A46 Queen's Pawn Game |
| 18. B Andersen vs Ugo Cala |
| ½-½ | 41 |
1954 |
Amsterdam ol (Men) | E38 Nimzo-Indian, Classical, 4...c5 |
| 19. J Jerolim vs Ugo Cala |
| 0-1 | 49 |
1954 |
Amsterdam ol (Men) | A47 Queen's Indian |
| 20. Ugo Cala vs Guimard |
| 0-1 | 38 |
1954 |
Amsterdam ol (Men) | C10 French |
| 21. P Papapavlou vs Ugo Cala |
| ½-½ | 44 |
1954 |
Amsterdam ol (Men) | C17 French, Winawer, Advance |
| 22. Ugo Cala vs O Zimmermann |
| ½-½ | 42 |
1954 |
Amsterdam ol (Men) | E58 Nimzo-Indian, 4.e3, Main line with 8...Bxc3 |
| 23. Ugo Cala vs M Rantanen |
| ½-½ | 60 |
1954 |
Amsterdam ol (Men) | A30 English, Symmetrical |
| 24. Ugo Cala vs E Weichselbaumer |
| ½-½ | 39 |
1954 |
Amsterdam ol (Men) | C07 French, Tarrasch |
| 25. Ugo Cala vs M Romi |
| 1-0 | 78 |
1954 |
17 Camp. Ital. Trieste | B10 Caro-Kann |