| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. R O'Donovan vs P Short |
 | ½-½ | 19 | 1997 | Iona Tech Masters | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 27. R O'Donovan vs M Heidenfeld |
| 0-1 | 24 | 1997 | Iona Tech Masters | C34 King's Gambit Accepted |
| 28. S Brady vs R O'Donovan |
| 1-0 | 42 | 1997 | IRL-ch | B22 Sicilian, Alapin |
| 29. M Heidenfeld vs R O'Donovan |
| ½-½ | 23 | 1998 | IRL-ch | B32 Sicilian |
| 30. R O'Donovan vs E O'Connor |
| 1-0 | 48 | 1998 | Bunratty Masters op | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 31. R O'Donovan vs L Porter |
| ½-½ | 54 | 1998 | ch-IRL | C34 King's Gambit Accepted |
| 32. R O'Donovan vs E Keogh |
| 0-1 | 45 | 1998 | Iona Tech Masters | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 33. S Brady vs R O'Donovan |
| ½-½ | 41 | 1999 | IRL-ch | B22 Sicilian, Alapin |
| 34. R O'Donovan vs S Brady |
| 0-1 | 35 | 2000 | Bunratty Masters op | C02 French, Advance |
| 35. R O'Donovan vs P Nikolic |
| 0-1 | 51 | 2003 | European Club Cup | B08 Pirc, Classical |
| 36. R O'Donovan vs B Kantsler |
| 0-1 | 57 | 2003 | European Club Cup | B08 Pirc, Classical |
| 37. R O'Donovan vs S Shipov |
| 0-1 | 38 | 2004 | Internet Section 07A g/8'+2'' | C02 French, Advance |
| 38. R O'Donovan vs S Brady |
| 0-1 | 45 | 2005 | IRL-ch | B29 Sicilian, Nimzovich-Rubinstein |
| 39. M Erdogdu vs R O'Donovan |
| 1-0 | 25 | 2005 | European Club Cup | B42 Sicilian, Kan |
| 40. R O'Donovan vs M van der Werf |
| 1-0 | 45 | 2005 | European Club Cup | B44 Sicilian |
| 41. B Schneider vs R O'Donovan |
| 1-0 | 34 | 2005 | European Club Cup | A25 English |
| 42. R O'Donovan vs H Schaufelberger |
| ½-½ | 53 | 2005 | European Club Cup | B30 Sicilian |
| 43. R Zelcic vs R O'Donovan |
| 1-0 | 27 | 2005 | European Club Cup | B43 Sicilian, Kan, 5.Nc3 |
| 44. R O'Donovan vs A Grigoryan |
| 0-1 | 34 | 2008 | European Club Cup | C45 Scotch Game |
| 45. R O'Donovan vs S Salihu |
| 0-1 | 14 | 2008 | European Club Cup | C02 French, Advance |
| 46. L O'Toole vs R O'Donovan |
| 1-0 | 37 | 2008 | European Club Cup | C42 Petrov Defense |
| 47. R O'Donovan vs J A Gilbert |
| 0-1 | 35 | 2008 | European Club Cup | B33 Sicilian |
| 48. M Abeln vs R O'Donovan |
| 1-0 | 26 | 2008 | European Club Cup | A14 English |
Kibitzing
