| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. R Ekstroem vs N Gavrilakis |
| 1-0 | 31 |
1989 |
EU-chT (Men) | B63 Sicilian, Richter-Rauzer Attack |
| 2. R Lev vs R Ekstroem |
| 1-0 | 72 |
1989 |
EU-chT (Men) | D31 Queen's Gambit Declined |
| 3. Sanna Gianlazzaro vs R Ekstroem |
| 1-0 | 34 |
1989 |
EU-chT (Men) | A58 Benko Gambit |
| 4. Razuvaev vs R Ekstroem |
| 1-0 | 38 |
1995 |
Geneve op | D19 Queen's Gambit Declined Slav, Dutch |
| 5. Bagirov vs R Ekstroem |
| 1-0 | 68 |
1995 |
09, Bern op | A13 English |
| 6. R Ekstroem vs L Krizsany |
| 1-0 | 29 |
1999 |
Hilton Open | B14 Caro-Kann, Panov-Botvinnik Attack |
| 7. V Tukmakov vs R Ekstroem |
| 1-0 | 32 |
1999 |
Weihnachts op-A 23th | E06 Catalan, Closed, 5.Nf3 |
| 8. R Ekstroem vs A Umbach |
| 1-0 | 21 |
2001 |
ch-SUI | E91 King's Indian |
| 9. R Ekstroem vs N Mitkov |
| 1-0 | 53 |
2001 |
2nd IECC | C41 Philidor Defense |
| 10. Fressinet vs R Ekstroem |
| 1-0 | 33 |
2001 |
EuTCh | B19 Caro-Kann, Classical |
| 11. R Ekstroem vs P Hugentobler |
 | 1-0 | 10 |
2001 |
Christmas Open | B05 Alekhine's Defense, Modern |
| 12. R Ekstroem vs M Bucher |
| 1-0 | 38 |
2001 |
ch-SUI | B14 Caro-Kann, Panov-Botvinnik Attack |
| 13. Conquest vs R Ekstroem |
| 1-0 | 52 |
2001 |
2nd IECC | B01 Scandinavian |
| 14. Conquest vs R Ekstroem |
| 1-0 | 41 |
2001 |
EuTCh | B01 Scandinavian |
| 15. R Ekstroem vs A Bezgodov |
| 1-0 | 35 |
2001 |
2nd IECC | D34 Queen's Gambit Declined, Tarrasch |
| 16. N Firman vs R Ekstroem |
| 1-0 | 39 |
2001 |
Master Open | B19 Caro-Kann, Classical |
| 17. R Ekstroem vs H Erdogan |
| 1-0 | 48 |
2001 |
EuTCh | A04 Reti Opening |
| 18. Huzman vs R Ekstroem |
| 1-0 | 48 |
2001 |
2nd IECC | D31 Queen's Gambit Declined |
| 19. R Ekstroem vs M Klauser |
| 1-0 | 56 |
2001 |
ch-SUI | A46 Queen's Pawn Game |
| 20. R Ekstroem vs I A Nataf |
| 1-0 | 56 |
2001 |
2nd IECC | B30 Sicilian |
| 21. S Halkias vs R Ekstroem |
| 1-0 | 33 |
2001 |
EuTCh | D50 Queen's Gambit Declined |
| 22. S Baumegger vs R Ekstroem |
| 1-0 | 32 |
2002 |
Bled Olympiad | B14 Caro-Kann, Panov-Botvinnik Attack |
| 23. R Ekstroem vs I Nemet |
| 1-0 | 36 |
2004 |
Swiss Championship | B22 Sicilian, Alapin |
| 24. R Ekstroem vs M Klauser |
| 1-0 | 49 |
2004 |
Swiss Championship | A41 Queen's Pawn Game (with ...d6) |
| 25. R Ekstroem vs T Sakelsek |
| 1-0 | 53 |
2006 |
Mitropa Cup | A45 Queen's Pawn Game |
