| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. P Biyiasas vs E Macskasy |
| 1-0 | 33 | 1968 | British Columbia-ch | C64 Ruy Lopez, Classical |
| 2. R Kerr vs P Biyiasas |
| 0-1 | 15 | 1969 | British Columbia Championship | C33 King's Gambit Accepted |
| 3. F Schulz vs P Biyiasas |
| 0-1 | 48 | 1969 | British Columbia Championship | C80 Ruy Lopez, Open |
| 4. P Biyiasas vs R Collier |
| 1-0 | 36 | 1969 | British Columbia Championship | B54 Sicilian |
| 5. A Ludgate vs P Biyiasas |
| 0-1 | 28 | 1969 | British Columbia-ch playoff | A41 Queen's Pawn Game (with ...d6) |
| 6. P Biyiasas vs J Berry |
| 1-0 | 28 | 1969 | British Columbia Championship | B42 Sicilian, Kan |
| 7. A Hill vs P Biyiasas |
| 0-1 | 43 | 1969 | British Columbia Championship | C68 Ruy Lopez, Exchange |
| 8. P Biyiasas vs R Zuk |
| 0-1 | 47 | 1969 | British Columbia Championship | B50 Sicilian |
| 9. P Biyiasas vs A Ludgate |
| 0-1 | 55 | 1969 | British Columbia Championship | E26 Nimzo-Indian, Samisch |
| 10. Z Vranesic vs P Biyiasas |
| 1-0 | 33 | 1969 | Canadian Championship | D48 Queen's Gambit Declined Semi-Slav, Meran |
| 11. E Macskasy vs P Biyiasas |
 | 1-0 | 28 | 1969 | Canadian Championship | D44 Queen's Gambit Declined Semi-Slav |
| 12. P Biyiasas vs C Coudari |
| 1-0 | 47 | 1969 | Canadian Championship | E84 King's Indian, Samisch, Panno Main line |
| 13. P Biyiasas vs B Amos |
| 1-0 | 31 | 1969 | Canadian Championship | B42 Sicilian, Kan |
| 14. P Biyiasas vs L Day |
| 0-1 | 55 | 1969 | Canadian Championship | C16 French, Winawer |
| 15. Suttles vs P Biyiasas |
| 0-1 | 57 | 1969 | Canadian Championship | A07 King's Indian Attack |
| 16. P Biyiasas vs Suttles |
| 1-0 | 43 | 1970 | British Columbia Championship | B06 Robatsch |
| 17. P Biyiasas vs A Zaradic |
| ½-½ | 37 | 1970 | British Columbia Championship | C11 French |
| 18. Suttles vs P Biyiasas |
| 1-0 | 31 | 1971 | B C Open | A25 English |
| 19. P Biyiasas vs R Basich |
| 1-0 | 31 | 1971 | 72nd US Open | C07 French, Tarrasch |
| 20. H Ree vs P Biyiasas |
| 1-0 | 42 | 1971 | 72nd US Open | A12 English with b3 |
| 21. P Biyiasas vs D Cotten |
| 1-0 | 51 | 1971 | 72nd US Open | C63 Ruy Lopez, Schliemann Defense |
| 22. B Worley vs P Biyiasas |
| 0-1 | 41 | 1971 | 72nd US Open | B32 Sicilian |
| 23. P Biyiasas vs Reshevsky |
| 0-1 | 41 | 1971 | 72nd US Open | B50 Sicilian |
| 24. J Romero vs P Biyiasas |
| 0-1 | 51 | 1971 | 72nd US Open | B06 Robatsch |
| 25. Lombardy vs P Biyiasas |
| 1-0 | 74 | 1971 | 72nd US Open | A15 English |
Kibitzing
