| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J McDonnell vs J Cobb |
| 0-1 | 39 | 1993 | British Championship | C77 Ruy Lopez |
| 2. J McDonnell vs S Ledger |
| 0-1 | 26 | 1995 | British Championship | B32 Sicilian |
| 3. J McDonnell vs P R Pugh |
| ½-½ | 29 | 1995 | Hastings Challengers 1995/96 | B76 Sicilian, Dragon, Yugoslav Attack |
| 4. J McDonnell vs F Deketelaere |
| 1-0 | 30 | 1996 | Hastings Challengers 1995/96 | B00 Uncommon King's Pawn Opening |
| 5. J McDonnell vs T Hinks-Edwards |
| 0-1 | 56 | 1998 | British Championship | B04 Alekhine's Defense, Modern |
| 6. A Jackson vs J McDonnell |
| ½-½ | 57 | 1998 | British Championship | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 7. J McDonnell vs M Basman |
| 0-1 | 34 | 1998 | British Championship | B00 Uncommon King's Pawn Opening |
| 8. D Coleman vs J McDonnell |
| 0-1 | 28 | 1998 | British Championship | B89 Sicilian |
| 9. J McDonnell vs G Buckley |
| 0-1 | 48 | 1998 | British Championship | B83 Sicilian |
| 10. A Hunt vs J McDonnell |
| 1-0 | 47 | 1999 | British Championship | B88 Sicilian, Fischer-Sozin Attack |
| 11. L D'Costa vs J McDonnell |
| 0-1 | 47 | 1999 | British Championship | B63 Sicilian, Richter-Rauzer Attack |
| 12. J McDonnell vs J Houska |
| ½-½ | 57 | 1999 | British Championship | B01 Scandinavian |
| 13. A Jackson vs J McDonnell |
| 1-0 | 29 | 1999 | British Championship | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 14. J McDonnell vs R Churm |
| 0-1 | 44 | 1999 | British Championship | C77 Ruy Lopez |
| 15. J Rudd vs J McDonnell |
| 1-0 | 33 | 1999 | British Championship | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 16. J McDonnell vs C Harris |
| 0-1 | 28 | 1999 | British Championship | C05 French, Tarrasch |
| 17. J McDonnell vs T Clarke |
| 0-1 | 25 | 1999 | British Championship | C05 French, Tarrasch |
| 18. M Ferguson vs J McDonnell |
| 1-0 | 27 | 2000 | Southend op | B31 Sicilian, Rossolimo Variation |
| 19. J McDonnell vs E Player |
| 0-1 | 16 | 2000 | Southend op | C05 French, Tarrasch |
| 20. J McDonnell vs A Simutowe |
| 0-1 | 16 | 2000 | British Championship | B56 Sicilian |
| 21. R Willmoth vs J McDonnell |
| 1-0 | 38 | 2000 | British Championship | A01 Nimzovich-Larsen Attack |
| 22. D Wise vs J McDonnell |
| 1-0 | 37 | 2000 | British Championship | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 23. J McDonnell vs M Buckley |
| 0-1 | 27 | 2000 | British Championship | C05 French, Tarrasch |
| 24. J McDonnell vs T Hebbes |
| 1-0 | 81 | 2000 | British Championship | C05 French, Tarrasch |
| 25. D Evans vs J McDonnell |
| ½-½ | 51 | 2000 | British Championship | A07 King's Indian Attack |
Kibitzing
