| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. N Usov vs Igor Ivanov |
| 1-0 | 23 |
1969 |
Leningrad ch Leningr | D61 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 2. O Kaminsky vs Igor Ivanov |
| 1-0 | 34 |
1969 |
Sochi (Russia) | B03 Alekhine's Defense |
| 3. Igor Ivanov vs A Reshko |
 | 0-1 | 26 |
1973 |
Leningrad-ch | A57 Benko Gambit |
| 4. Igor Ivanov vs Korchnoi |
| 0-1 | 29 |
1973 |
Leningrad (Russia) | E50 Nimzo-Indian, 4.e3 O-O 5.Nf3, without ...d5 |
| 5. Shternberg vs Igor Ivanov |
| 1-0 | 36 |
1974 |
USSR 18/262 | C62 Ruy Lopez, Old Steinitz Defense |
| 6. V Kozlov vs Igor Ivanov |
| 1-0 | 23 |
1974 |
Leningrad | A34 English, Symmetrical |
| 7. Igor Ivanov vs L Gutman |
| 0-1 | 18 |
1975 |
Riga | D83 Grunfeld, Grunfeld Gambit |
| 8. Chekhov vs Igor Ivanov |
| 1-0 | 26 |
1975 |
URS-ch FL43 | C68 Ruy Lopez, Exchange |
| 9. G Timoshchenko vs Igor Ivanov |
| 1-0 | 38 |
1975 |
Ch URS (select) | C84 Ruy Lopez, Closed |
| 10. Sveshnikov vs Igor Ivanov |
| 1-0 | 36 |
1976 |
USSR 22/574 | B14 Caro-Kann, Panov-Botvinnik Attack |
| 11. Tseshkovsky vs Igor Ivanov |
| 1-0 | 41 |
1976 |
Minsk (Belarus) | C89 Ruy Lopez, Marshall |
| 12. Igor Ivanov vs A Zakharov |
| 0-1 | 43 |
1976 |
Kislovodsk | D48 Queen's Gambit Declined Semi-Slav, Meran |
| 13. M S Tseitlin vs Igor Ivanov |
| 1-0 | 39 |
1976 |
USSR 23/201 | B16 Caro-Kann, Bronstein-Larsen Variation |
| 14. Igor Ivanov vs Tseshkovsky |
| 0-1 | 29 |
1977 |
Tournament | D91 Grunfeld, 5.Bg5 |
| 15. Vaisser vs Igor Ivanov |
| 1-0 | 26 |
1977 |
Ch URS (select) | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 16. Igor Ivanov vs A Kapengut |
| 0-1 | 32 |
1977 |
USSR 23/125 | A62 Benoni, Fianchetto Variation |
| 17. Igor Ivanov vs E Mnatsakanian |
| 0-1 | 31 |
1977 |
Tournament | E10 Queen's Pawn Game |
| 18. A Machulsky vs Igor Ivanov |
| 1-0 | 29 |
1977 |
Ch URS (select) | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 19. Averkin vs Igor Ivanov |
| 1-0 | 43 |
1977 |
Erivan 23ch-city | D45 Queen's Gambit Declined Semi-Slav |
| 20. I Efimov vs Igor Ivanov |
| 1-0 | 39 |
1977 |
Tournament | B62 Sicilian, Richter-Rauzer |
| 21. V Fedorov vs Igor Ivanov |
| 1-0 | 41 |
1977 |
Ch URS (select) | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 22. Igor Ivanov vs N Popov |
| 0-1 | 40 |
1977 |
Tournament | E59 Nimzo-Indian, 4.e3, Main line |
| 23. B Katalymov vs Igor Ivanov |
| 1-0 | 57 |
1977 |
Tournament | B62 Sicilian, Richter-Rauzer |
| 24. Lputian vs Igor Ivanov |
| 1-0 | 51 |
1977 |
Tournament | E10 Queen's Pawn Game |
| 25. Igor Ivanov vs L I Kaplun |
| 0-1 | 34 |
1977 |
Ch URS (select) | A15 English |
