Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. Ekenberg vs Alekhine |
  | 0-1 | 23 | 1935 | Orebro | A80 Dutch |
2. Ekenberg vs V Mezgailis |
| 0-1 | 49 | 1936 | non-FIDE Munich Olympiad | B10 Caro-Kann |
3. Ekenberg vs K Poschauko |
| 0-1 | 22 | 1936 | non-FIDE Munich Olympiad | C64 Ruy Lopez, Classical |
4. Ekenberg vs N Voinov |
| 1-0 | 39 | 1936 | non-FIDE Munich Olympiad | C13 French |
5. G Barcza vs Ekenberg |
| 1-0 | 41 | 1936 | non-FIDE Munich Olympiad | E64 King's Indian, Fianchetto, Yugoslav System |
6. Ekenberg vs G Friedemann |
| ½-½ | 32 | 1939 | Buenos Aires Olympiad qual-4 | C58 Two Knights |
7. Johannes Austboe vs Ekenberg |
| 0-1 | 41 | 1939 | Buenos Aires Olympiad qual-4 | E67 King's Indian, Fianchetto |
8. Ekenberg vs Carlos Salazar |
| 1-0 | 24 | 1939 | Buenos Aires Olympiad qual-4 | B14 Caro-Kann, Panov-Botvinnik Attack |
9. Ekenberg vs F Planas Garcia |
| 0-1 | 24 | 1939 | Buenos Aires Olympiad qual-4 | C00 French Defense |
10. M Rauch vs Ekenberg |
| ½-½ | 41 | 1939 | Buenos Aires Olympiad qual-4 | B24 Sicilian, Closed |
11. Ekenberg vs T Regedzinski |
| 1-0 | 24 | 1939 | Buenos Aires Olympiad Final-A | B14 Caro-Kann, Panov-Botvinnik Attack |
12. Ekenberg vs M Rauch |
| ½-½ | 49 | 1939 | Buenos Aires Olympiad Final-A | C10 French |
13. Ekenberg vs O Cruz Filho |
| ½-½ | 43 | 1939 | Buenos Aires Olympiad Final-A | C09 French, Tarrasch, Open Variation, Main line |
14. P Tautvaisas vs Ekenberg |
| 0-1 | 33 | 1939 | Buenos Aires Olympiad Final-A | B73 Sicilian, Dragon, Classical |
15. Ekenberg vs F Zita |
| 0-1 | 51 | 1939 | Buenos Aires Olympiad Final-A | C10 French |
16. I Pleci vs Ekenberg |
| 0-1 | 37 | 1939 | Buenos Aires Olympiad Final-A | B55 Sicilian, Prins Variation, Venice Attack |
17. Ekenberg vs Keres |
 | 1-0 | 56 | 1944 | Lidkoping | C59 Two Knights |
18. B E Horberg vs Ekenberg |
| ½-½ | 88 | 1965 | SWE-ch | A81 Dutch |
19. R Goode vs Ekenberg |
 | 1-0 | 49 | 1966 | SWE-ch | C70 Ruy Lopez |
20. Ake Olsson vs Ekenberg |
 | 0-1 | 72 | 1966 | SWE-ch | C70 Ruy Lopez |
21. Ekenberg vs O Kinnmark |
| 1-0 | 32 | 1966 | SWE-ch | C26 Vienna |
22. A Burehall vs Ekenberg |
| ½-½ | 65 | 1966 | SWE-ch | C70 Ruy Lopez |
23. Ekenberg vs O Alfredsson |
 | 1-0 | 9 | 1966 | SWE-ch | C30 King's Gambit Declined |
24. A Werle vs Ekenberg |
| 0-1 | 28 | 1966 | SWE-ch | C84 Ruy Lopez, Closed |
25. Ekenberg vs J Westman |
| ½-½ | 31 | 1966 | SWE-ch | B21 Sicilian, 2.f4 and 2.d4 |