| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. F Olafsson vs O'Kelly |
| 1-0 | 42 |
1967 |
Dundee (England) | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 2. J H Donner vs O'Kelly |
| 1-0 | 50 |
1968 |
Olympiad | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 3. A Pomar-Salamanca vs O'Kelly |
| ½-½ | 37 |
1968 |
Olympiad | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 4. J H Donner vs O'Kelly |
| ½-½ | 20 |
1968 |
Int. tournament, Solingen (FRG) | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 5. A Pomar-Salamanca vs O'Kelly |
| ½-½ | 36 |
1969 |
Habana (Cuba) | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 6. Gligoric vs O'Kelly |
| 1-0 | 48 |
1969 |
Habana (Cuba) | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 7. A Pomar-Salamanca vs O'Kelly |
| ½-½ | 47 |
1969 |
Olot (Spain) | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 8. W G Addison vs O'Kelly |
| ½-½ | 20 |
1970 |
Caracas it | E54 Nimzo-Indian, 4.e3, Gligoric System |
