| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. O Morcken vs Letelier |
| 0-1 | 49 | 1950 | Dubrovnik Olympiad | D14 Queen's Gambit Declined Slav, Exchange Variation |
| 2. Pirc vs O Morcken |
| 1-0 | 46 | 1950 | Dubrovnik Olympiad | A16 English |
| 3. N Bergkvist vs O Morcken |
| ½-½ | 41 | 1950 | Dubrovnik Olympiad | B74 Sicilian, Dragon, Classical |
| 4. O Morcken vs Boulachanis |
| ½-½ | 56 | 1950 | Dubrovnik Olympiad | E67 King's Indian, Fianchetto |
| 5. S Kesten vs O Morcken |
| 1-0 | 54 | 1950 | Dubrovnik Olympiad | D00 Queen's Pawn Game |
| 6. O Morcken vs M Zapata Vinces |
| ½-½ | 25 | 1950 | Dubrovnik Olympiad | A49 King's Indian, Fianchetto without c4 |
| 7. O Morcken vs H Busek |
| ½-½ | 41 | 1950 | Dubrovnik Olympiad | E67 King's Indian, Fianchetto |
| 8. O Morcken vs G Kramer |
| 0-1 | 26 | 1950 | Dubrovnik Olympiad | E34 Nimzo-Indian, Classical, Noa Variation |
| 9. O Morcken vs G Porreca |
| 0-1 | 34 | 1950 | Dubrovnik Olympiad | E37 Nimzo-Indian, Classical |
| 10. O Morcken vs M Kupferstich |
| 0-1 | 45 | 1950 | Dubrovnik Olympiad | E67 King's Indian, Fianchetto |
| 11. P Devos vs O Morcken |
| 0-1 | 27 | 1950 | Dubrovnik Olympiad | D35 Queen's Gambit Declined |
| 12. O Morcken vs I Niemela |
| ½-½ | 102 | 1950 | Dubrovnik Olympiad | D60 Queen's Gambit Declined, Orthodox Defense |
| 13. L Rellstab vs O Morcken |
| ½-½ | 46 | 1950 | Dubrovnik Olympiad | B71 Sicilian, Dragon, Levenfish Variation |
| 14. O Morcken vs P Trifunovic |
 | 0-1 | 40 | 1952 | Helsinki Olympiad qual-2 | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 15. O Morcken vs J de Souza Mendes |
| ½-½ | 58 | 1952 | Helsinki Olympiad qual-2 | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 16. A Beni vs O Morcken |
| 1-0 | 31 | 1952 | Helsinki Olympiad qual-2 | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 17. U Cala vs O Morcken |
| 1-0 | 59 | 1952 | Helsinki Olympiad qual-2 | B92 Sicilian, Najdorf, Opocensky Variation |
| 18. O Morcken vs F Morel |
| 0-1 | 40 | 1952 | Helsinki Olympiad Final-C | E60 King's Indian Defense |
| 19. O Morcken vs P Levy |
| 1-0 | 45 | 1952 | Helsinki Olympiad Final-C | D60 Queen's Gambit Declined, Orthodox Defense |
| 20. F Mastichiadis vs O Morcken |
| ½-½ | 36 | 1952 | Helsinki Olympiad Final-C | D68 Queen's Gambit Declined, Orthodox Defense, Classical |
| 21. O Benkner vs O Morcken |
| 1-0 | 51 | 1952 | Helsinki Olympiad Final-C | D61 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 22. Stahlberg vs O Morcken |
| 1-0 | 24 | 1954 | Amsterdam Olympiad qual-3 | D63 Queen's Gambit Declined, Orthodox Defense |
| 23. O Morcken vs O Bernstein |
| ½-½ | 27 | 1954 | Amsterdam Olympiad qual-3 | D50 Queen's Gambit Declined |
| 24. O Morcken vs Pirc |
| 0-1 | 41 | 1954 | Amsterdam Olympiad qual-3 | E11 Bogo-Indian Defense |
| 25. O Benkner vs O Morcken |
| 1-0 | 24 | 1954 | Amsterdam Olympiad qual-3 | A18 English, Mikenas-Carls |
Kibitzing
