| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Adianto vs S Irwanto |
| 1-0 | 36 | 1995 | Genting Highlands Zonal | D37 Queen's Gambit Declined |
| 2. S Irwanto vs I Datu |
| 0-1 | 39 | 1997 | World Cities | E97 King's Indian |
| 3. S Irwanto vs Ehlvest |
| 1-0 | 52 | 2000 | Japfa op | E34 Nimzo-Indian, Classical, Noa Variation |
| 4. D K Johansen vs S Irwanto |
| 1-0 | 64 | 2000 | Japfa op | A20 English |
| 5. S Irwanto vs T Halay |
| 0-1 | 48 | 2000 | Japfa op | E97 King's Indian |
| 6. M Podgaets vs S Irwanto |
| 0-1 | 33 | 2000 | Japfa op | D45 Queen's Gambit Declined Semi-Slav |
| 7. S Irwanto vs E Handoko |
| 0-1 | 47 | 2000 | Japfa op | D52 Queen's Gambit Declined |
| 8. S Irwanto vs M Nasir Hj Husain |
| 1-0 | 45 | 2001 | Asean op 1st | A59 Benko Gambit |
| 9. S Irwanto vs E Senador |
| ½-½ | 43 | 2001 | Asean op 1st | D02 Queen's Pawn Game |
| 10. S Irwanto vs I Rogers |
| ½-½ | 24 | 2001 | Asean op 1st | A41 Queen's Pawn Game (with ...d6) |
| 11. R Antonio vs S Irwanto |
| ½-½ | 50 | 2001 | Asean op 1st | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 12. S Irwanto vs D Juswanto |
| 0-1 | 34 | 2001 | Asean op 1st | D18 Queen's Gambit Declined Slav, Dutch |
| 13. A Nguyen vs S Irwanto |
| ½-½ | 16 | 2001 | Asean op 1st | C48 Four Knights |
| 14. Sulaiman Hj Mohd Nor vs S Irwanto |
| 0-1 | 31 | 2001 | 1st Sea Chess TCh | D04 Queen's Pawn Game |
| 15. S Irwanto vs J Lim |
 | 1-0 | 58 | 2001 | 1st Sea Chess TCh | D97 Grunfeld, Russian |
| 16. S Irwanto vs M H Pham |
| 1-0 | 74 | 2001 | 1st Sea Chess TCh | D91 Grunfeld, 5.Bg5 |
| 17. S Irwanto vs Wynn Zaw Htun |
| 1-0 | 52 | 2001 | 1st Sea Chess TCh | A53 Old Indian |
| 18. S Megaranto vs S Irwanto |
| 0-1 | 60 | 2002 | Wismilak | C92 Ruy Lopez, Closed |
| 19. C Skehan vs S Irwanto |
| 0-1 | 28 | 2002 | Bled Olympiad | D00 Queen's Pawn Game |
| 20. S Irwanto vs E Mortensen |
| 1-0 | 55 | 2002 | Bled Olympiad | E94 King's Indian, Orthodox |
| 21. S Irwanto vs Z Ilincic |
| 0-1 | 46 | 2002 | Bled Olympiad | E11 Bogo-Indian Defense |
| 22. S Irwanto vs Thanh Son Nguyen |
| ½-½ | 25 | 2002 | Bled Olympiad | D15 Queen's Gambit Declined Slav |
| 23. A Wohl vs S Irwanto |
| 1-0 | 47 | 2002 | Bled Olympiad | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 24. A EL Mahmoud vs S Irwanto |
| 0-1 | 50 | 2002 | Bled Olympiad | A14 English |
| 25. S Irwanto vs Mecking |
| 0-1 | 43 | 2002 | Bled Olympiad | A75 Benoni, Classical with ...a6 and 10...Bg4 |
Kibitzing
