| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. K Pacey vs D Southam |
| 1-0 | 14 | 1984 | Toronto International u2200 | B06 Robatsch |
| 2. B Saxe vs D Southam |
| 1-0 | 25 | 1984 | Toronto International u2200 | A31 English, Symmetrical, Benoni Formation |
| 3. D Southam vs A Littke |
| 1-0 | 24 | 1985 | Canada zt Winnipeg | C36 King's Gambit Accepted, Abbazia Defense |
| 4. D Southam vs K Pacey |
| 0-1 | 36 | 1985 | Toronto Closed | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 5. D Southam vs V Rao |
| ½-½ | 30 | 1988 | Saint John op | B89 Sicilian |
| 6. D Edelman vs D Southam |
| 1-0 | 39 | 1988 | 16th World Open | C45 Scotch Game |
| 7. D Shapiro vs D Southam |
| 1-0 | 25 | 1988 | 16th World Open | D34 Queen's Gambit Declined, Tarrasch |
| 8. D Southam vs de Firmian |
| ½-½ | 58 | 1988 | 16th World Open | E43 Nimzo-Indian, Fischer Variation |
| 9. D Southam vs K E Kowalske |
| 1-0 | 30 | 1988 | 16th World Open | E91 King's Indian |
| 10. A Fishbein vs D Southam |
| 1-0 | 26 | 1989 | 17th World Open | C91 Ruy Lopez, Closed |
| 11. W Klarner vs D Southam |
| 1-0 | 40 | 1989 | Scarborough Chess Club championship | C02 French, Advance |
| 12. D Southam vs B Hartman |
| 0-1 | 28 | 1989 | Canadian Championship | C84 Ruy Lopez, Closed |
| 13. D Southam vs G Taylor |
| 0-1 | 36 | 1989 | Canadian Championship | D41 Queen's Gambit Declined, Semi-Tarrasch |
| 14. R Hamilton vs D Southam |
| 1-0 | 63 | 1989 | Canadian Championship | C16 French, Winawer |
| 15. D Southam vs G Basanta |
| 0-1 | 51 | 1989 | Canadian Championship | B50 Sicilian |
| 16. R Stone vs D Southam |
| ½-½ | 23 | 1989 | Canadian Championship | D17 Queen's Gambit Declined Slav |
| 17. D Southam vs L Piasetski |
| 1-0 | 75 | 1989 | Canadian Championship | A55 Old Indian, Main line |
| 18. D Hergott vs D Southam |
| 1-0 | 49 | 1989 | Canadian Championship | A01 Nimzovich-Larsen Attack |
| 19. D Bailey vs D Southam |
| 1-0 | 39 | 1989 | Canadian Championship | B81 Sicilian, Scheveningen, Keres Attack |
| 20. D Southam vs B Nickoloff |
| 0-1 | 40 | 1989 | Canadian Championship | C92 Ruy Lopez, Closed |
| 21. P Ross vs D Southam |
| 0-1 | 32 | 1989 | Canadian Championship | E92 King's Indian |
| 22. R Huda vs D Southam |
| ½-½ | 62 | 1989 | Canadian Championship | E09 Catalan, Closed |
| 23. D Southam vs T O'Donnell |
| 0-1 | 50 | 1989 | Canadian Championship | D11 Queen's Gambit Declined Slav |
| 24. D Southam vs A Frialde |
| ½-½ | 74 | 1989 | Canadian Championship | B86 Sicilian, Fischer-Sozin Attack |
| 25. K Gentes vs D Southam |
| ½-½ | 21 | 1989 | Canadian Championship | E83 King's Indian, Samisch |
Kibitzing
