| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J Stonkus vs I Zalys |
| ½-½ | 53 |
1952 |
Golden Knights corr | A40 Queen's Pawn Game |
| 2. I Zalys vs A Tanguay |
| 1-0 | 64 |
1952 |
Montreal m2 | D30 Queen's Gambit Declined |
| 3. I Zalys vs J O'Reilly |
| 1-0 | 21 |
1952 |
Golden Knights corr | D39 Queen's Gambit Declined, Ragozin, Vienna Variation |
| 4. I Zalys vs Ernst Werner |
| 1-0 | 22 |
1953 |
Golden Knights corr | D39 Queen's Gambit Declined, Ragozin, Vienna Variation |
| 5. I Zalys vs A Tanguay |
| 1-0 | 28 |
1953 |
Montreal m 5th | D30 Queen's Gambit Declined |
| 6. I Zalys vs Ernst Werner |
| 1-0 | 31 |
1953 |
Golden Knights corr | D39 Queen's Gambit Declined, Ragozin, Vienna Variation |
| 7. James Wright vs I Zalys |
| 0-1 | 26 |
1955 |
Golden Knights corr | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 8. I Zalys vs J Karalaitis |
| 1-0 | 18 |
1955 |
Golden Knights corr | D30 Queen's Gambit Declined |
| 9. S Bernstein vs I Zalys |
| 1-0 | 46 |
1956 |
Canadian Open | B23 Sicilian, Closed |
| 10. I Zalys vs T Tripodes |
| 1-0 | 21 |
1957 |
Golden Knights corr | D11 Queen's Gambit Declined Slav |
| 11. J MacDonald vs I Zalys |
 | 0-1 | 29 |
1958 |
Canada op | E38 Nimzo-Indian, Classical, 4...c5 |
| 12. Fischer vs I Zalys |
 | 0-1 | 30 |
1964 |
Montreal Simul | C33 King's Gambit Accepted |
| 13. L Day vs I Zalys |
| ½-½ | 52 |
1965 |
Montreal-Ontario match | B28 Sicilian, O'Kelly Variation |
| 14. I Zalys vs L Day |
| ½-½ | 58 |
1966 |
Ottawa Open | A04 Reti Opening |
| 15. I Zalys vs H Wright |
| 1-0 | 24 |
1966 |
USA Golden Knights corr | C88 Ruy Lopez |
| 16. I Zalys vs R Brieger |
| 0-1 | 29 |
1967 |
US op | D06 Queen's Gambit Declined |
| 17. John N Jacobs vs I Zalys |
| 1-0 | 12 |
1967 |
US Open | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 18. I Zalys vs J Pundy |
| 0-1 | 37 |
1967 |
US Open | B37 Sicilian, Accelerated Fianchetto |
| 19. I Zalys vs K Spraggett |
| 0-1 | 34 |
1973 |
Cacuri | B22 Sicilian, Alapin |
| 20. B Ivanovic vs I Zalys |
| 1-0 | 51 |
1978 |
Quebec op | B19 Caro-Kann, Classical |