| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. W G Addison vs A Vinje-Gulbrandsen |
| 1-0 | 41 |
1964 |
Tel Aviv ol (Men) | E55 Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation |
| 2. W G Addison vs Fischer |
 | ½-½ | 59 |
1965 |
New York ch-US | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 3. W G Addison vs J Kostro |
| 1-0 | 19 |
1966 |
Havana ol (Men) | E46 Nimzo-Indian |
| 4. W G Addison vs G Sigurjonsson |
| 1-0 | 25 |
1968 |
Reykjavik | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 5. W G Addison vs Taimanov |
| ½-½ | 25 |
1968 |
Reykjavik | E46 Nimzo-Indian |
| 6. W G Addison vs Reshevsky |
| ½-½ | 41 |
1969 |
USA-ch | E52 Nimzo-Indian, 4.e3, Main line with ...b6 |
| 7. W G Addison vs Huebner |
| 0-1 | 44 |
1970 |
Palma de Mallorca izt | E41 Nimzo-Indian |
| 8. W G Addison vs O'Kelly |
| ½-½ | 20 |
1970 |
Caracas it | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 9. W G Addison vs M Cuellar-Gacharna |
| ½-½ | 39 |
1970 |
Caracas it | E59 Nimzo-Indian, 4.e3, Main line |
| 10. W G Addison vs Reshevsky |
| ½-½ | 32 |
1970 |
Palma de Mallorca izt | E49 Nimzo-Indian, 4.e3, Botvinnik System |
| 11. W G Addison vs Parma |
| 0-1 | 34 |
1970 |
Caracas (Venezuela) | E54 Nimzo-Indian, 4.e3, Gligoric System |
