| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Keres vs N Folke Ekstroem |
 | 1-0 | 19 |
1944 |
Stockholm m (21.06.44) | D50 Queen's Gambit Declined |
| 2. Keres vs N Folke Ekstroem |
| 1-0 | 53 |
1944 |
Stockholm m (19.06.44) | A13 English |
| 3. N Folke Ekstroem vs E G Sergeant |
| 1-0 | 35 |
1945 |
Hastings | A08 King's Indian Attack |
| 4. N Folke Ekstroem vs Prins |
| 1-0 | 36 |
1945 |
Hastings | E60 King's Indian Defense |
| 5. N Folke Ekstroem vs Euwe |
| 1-0 | 80 |
1945 |
Hastings4546 ;HCL 24 | C47 Four Knights |
| 6. N Folke Ekstroem vs Mieses |
| 1-0 | 28 |
1945 |
Hastings | D08 Queen's Gambit Declined, Albin Counter Gambit |
| 7. Tartakower vs N Folke Ekstroem |
| 1-0 | 35 |
1945 |
Hastings | B80 Sicilian, Scheveningen |
| 8. N Folke Ekstroem vs G A Thomas |
| 1-0 | 36 |
1945 |
Hastings | D55 Queen's Gambit Declined |
| 9. N Folke Ekstroem vs V Soultanbeieff |
| 1-0 | 26 |
1946 |
Zaandam it, NED | D16 Queen's Gambit Declined Slav |
| 10. Stoltz vs N Folke Ekstroem |
| 1-0 | 58 |
1946 |
Zaandam it, NED | C17 French, Winawer, Advance |
| 11. N Folke Ekstroem vs B H Wood |
| 1-0 | 34 |
1946 |
Zaandam it, NED | C58 Two Knights |
| 12. N Folke Ekstroem vs Znosko-Borovsky |
| 1-0 | 30 |
1946 |
Zaandam it | E16 Queen's Indian |
| 13. N Folke Ekstroem vs P M List |
| 1-0 | 34 |
1946 |
Zaandam it, NED | E11 Bogo-Indian Defense |
| 14. N Folke Ekstroem vs Szabo |
| 1-0 | 59 |
1946 |
Zaanstreek | D41 Queen's Gambit Declined, Semi-Tarrasch |
| 15. N Folke Ekstroem vs G Carrisson |
| 1-0 | 24 |
1961 |
EU-ch M corr | C61 Ruy Lopez, Bird's Defense |
