| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. R Meessen vs O Adu |
 | 0-1 | 57 | 1998 | Elista Olympiad | E85 King's Indian, Samisch, Orthodox Variation |
| 2. K Mohsen vs O Adu |
| 1-0 | 66 | 1998 | Tanta zt | A53 Old Indian |
| 3. D Strenzwilk vs O Adu |
| 1-0 | 52 | 1999 | Atlantic op | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 4. A Wojtkiewicz vs O Adu |
| 1-0 | 62 | 1999 | Northern Virginia op | A38 English, Symmetrical |
| 5. O Adu vs R Kaufman |
| 1-0 | 28 | 1999 | Northern Virginia op | C42 Petrov Defense |
| 6. Nakamura vs O Adu |
| 1-0 | 37 | 1999 | Eastern Open | B54 Sicilian |
| 7. P Kurucz vs O Adu |
| 0-1 | 15 | 2000 | Northern Virginia Open | C05 French, Tarrasch |
| 8. A Wojtkiewicz vs O Adu |
| 1-0 | 23 | 2000 | Portsmouth Millennium op | A15 English |
| 9. O Adu vs M Ritter |
| 0-1 | 49 | 2000 | USA-chT Amateur East | A00 Uncommon Opening |
| 10. Yermolinsky vs O Adu |
| ½-½ | 25 | 2000 | 28th World Open | E71 King's Indian, Makagonov System (5.h3) |
| 11. Y Schwartz vs O Adu |
| 1-0 | 39 | 2000 | 28th World Open | E60 King's Indian Defense |
| 12. S J Szpisjak vs O Adu |
| 0-1 | 29 | 2000 | 28th World Open | C14 French, Classical |
| 13. Yudasin vs O Adu |
| 1-0 | 24 | 2001 | Millennium II Open | C00 French Defense |
| 14. B Finegold vs O Adu |
| ½-½ | 27 | 2001 | 29th World Open | A40 Queen's Pawn Game |
| 15. O Adu vs M van Delft |
| ½-½ | 25 | 2001 | 29th World Open | B50 Sicilian |
| 16. R Rubenchik vs O Adu |
| ½-½ | 60 | 2001 | 29th World Open | A15 English |
| 17. O Adu vs R Armes |
| 1-0 | 17 | 2001 | 102nd US Open | C63 Ruy Lopez, Schliemann Defense |
| 18. W Paschall vs O Adu |
| 1-0 | 58 | 2001 | 102nd US Open | A00 Uncommon Opening |
| 19. O Adu vs Arash Samani |
| 1-0 | 21 | 2001 | 102nd US Open | A07 King's Indian Attack |
| 20. A Ivanov vs O Adu |
| 0-1 | 39 | 2001 | Governor's Cup | C05 French, Tarrasch |
| 21. P Wolff vs O Adu |
| 1-0 | 22 | 2001 | Governor's Cup | C01 French, Exchange |
| 22. O Adu vs B Finegold |
| 0-1 | 44 | 2001 | Philadelphia NCC | A07 King's Indian Attack |
| 23. O Adu vs E Formanek |
| 0-1 | 24 | 2002 | Donald Byrne Memorial | C00 French Defense |
| 24. S Kriventsov vs O Adu |
| 1-0 | 34 | 2002 | Richard Aronow Invitational | B90 Sicilian, Najdorf |
| 25. O Adu vs I Abdelnabbi |
| 0-1 | 33 | 2003 | Africa-ch blitz | A07 King's Indian Attack |
Kibitzing
