| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Delaere vs Y Iwasaki |
| ½-½ | 39 | 1999 | Artek ol U16 | B90 Sicilian, Najdorf |
| 2. D Rowe vs Y Iwasaki |
| ½-½ | 60 | 2002 | Bled Olympiad | B90 Sicilian, Najdorf |
| 3. E Van Beers vs Y Iwasaki |
| ½-½ | 34 | 2002 | Bled Olympiad | B22 Sicilian, Alapin |
| 4. Y Iwasaki vs Mohamed Mawed |
| 1-0 | 50 | 2002 | Bled Olympiad | D15 Queen's Gambit Declined Slav |
| 5. S Wastney vs Y Iwasaki |
| 1-0 | 49 | 2002 | Bled Olympiad | D15 Queen's Gambit Declined Slav |
| 6. Y Iwasaki vs S Megaranto |
| 0-1 | 39 | 2003 | Ho Chi Minh City zt 3.2a | B18 Caro-Kann, Classical |
| 7. Y Iwasaki vs R Livshits |
 | 0-1 | 57 | 2006 | Turin Olympiad | C45 Scotch Game |
| 8. Y Iwasaki vs A A Howell |
| 1-0 | 18 | 2006 | Turin Olympiad | B07 Pirc |
| 9. G R Hernandez Sevillano vs Y Iwasaki |
| 1-0 | 42 | 2006 | Turin Olympiad | B31 Sicilian, Rossolimo Variation |
| 10. E Campos vs Y Iwasaki |
| 1-0 | 32 | 2006 | Turin Olympiad | B31 Sicilian, Rossolimo Variation |
| 11. A EL Mahmoud vs Y Iwasaki |
| 0-1 | 48 | 2006 | Turin Olympiad | E64 King's Indian, Fianchetto, Yugoslav System |
| 12. Y Iwasaki vs I Munanira |
| 1-0 | 52 | 2006 | Turin Olympiad | C45 Scotch Game |
| 13. B Saeheng vs Y Iwasaki |
| 1-0 | 52 | 2006 | Turin Olympiad | E97 King's Indian |
| 14. Y Iwasaki vs M M Abdul |
| 1-0 | 25 | 2006 | Turin Olympiad | A07 King's Indian Attack |
| 15. Y Iwasaki vs H Al-Hadarani |
| ½-½ | 30 | 2006 | Turin Olympiad | B28 Sicilian, O'Kelly Variation |
| 16. Y Iwasaki vs S Wu |
| 0-1 | 35 | 2007 | 2nd MAIG-Team Standard chess | B89 Sicilian |
| 17. H Mas vs Y Iwasaki |
| 1-0 | 47 | 2007 | 2nd MAIG-Team Standard chess | B31 Sicilian, Rossolimo Variation |
| 18. Y Iwasaki vs B T Rimawi |
| 0-1 | 53 | 2007 | 2nd MAIG-Team Standard chess | B05 Alekhine's Defense, Modern |
| 19. Y Iwasaki vs Bartilotti De V R Joao Car |
| 1-0 | 27 | 2007 | 2nd MAIG-Team Standard chess | B01 Scandinavian |
| 20. A Malachi vs Y Iwasaki |
| 1-0 | 25 | 2008 | 1st WMSG Blitz Team | B63 Sicilian, Richter-Rauzer Attack |
| 21. Y Iwasaki vs M Mrva |
| 0-1 | 31 | 2008 | Mindsports | B45 Sicilian, Taimanov |
| 22. L Sandler vs Y Iwasaki |
| 1-0 | 41 | 2008 | Mindsports | E67 King's Indian, Fianchetto |
| 23. H A Hussein Al-Ali vs Y Iwasaki |
| 0-1 | 36 | 2008 | Mindsports | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 24. B Gundavaa vs Y Iwasaki |
| 1-0 | 27 | 2008 | Mindsports | E67 King's Indian, Fianchetto |
| 25. P Tvarijonas vs Y Iwasaki |
| ½-½ | 80 | 2008 | Mindsports | B60 Sicilian, Richter-Rauzer |
Kibitzing
