| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. T O'Donnell vs L Day |
 | 1-0 | 54 |
1992 |
02, CAN zt | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 2. T O'Donnell vs Remlinger |
| 1-0 | 50 |
1994 |
San Mateo | C07 French, Tarrasch |
| 3. J Torres vs T O'Donnell |
 | 0-1 | 33 |
1994 |
San Mateo | D44 Queen's Gambit Declined Semi-Slav |
| 4. L Day vs T O'Donnell |
| 0-1 | 40 |
1994 |
Canadian National Championships Hamilton CAN ( | C11 French |
| 5. T O'Donnell vs L Busquets |
| 1-0 | 28 |
1994 |
San Mateo | B22 Sicilian, Alapin |
| 6. P Moulin vs T O'Donnell |
| 0-1 | 46 |
1995 |
Marshall CC int fin | B58 Sicilian |
| 7. T O'Donnell vs V Gaspariants |
| 1-0 | 37 |
2001 |
Canadian Open | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 8. M Mazock vs T O'Donnell |
| 0-1 | 46 |
2001 |
Canadian Open | D45 Queen's Gambit Declined Semi-Slav |
| 9. T O'Donnell vs W Taylor |
| 1-0 | 40 |
2001 |
Canadian Open | B05 Alekhine's Defense, Modern |
| 10. T O'Donnell vs R Golts |
| 1-0 | 67 |
2001 |
Canadian Open | C07 French, Tarrasch |
| 11. Lorne Yee vs T O'Donnell |
| 0-1 | 31 |
2001 |
Canadian Open | A13 English |
| 12. T O'Donnell vs L Mai |
 | 1-0 | 57 |
2007 |
Canadian Open | E97 King's Indian |
| 13. T O'Donnell vs J Upper |
| 1-0 | 32 |
2007 |
Canadian Open | C05 French, Tarrasch |