| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. R Ekstroem vs Sosonko |
| ½-½ | 23 |
1984 |
Zurich | B30 Sicilian |
| 2. R Ekstroem vs Matulovic |
| ½-½ | 26 |
1987 |
Banja Luka | B49 Sicilian, Taimanov Variation |
| 3. R Ekstroem vs B Badea |
| 0-1 | 34 |
1989 |
EU-chT (Men) | B93 Sicilian, Najdorf, 6.f4 |
| 4. R Ekstroem vs N Gavrilakis |
| 1-0 | 31 |
1989 |
EU-chT (Men) | B63 Sicilian, Richter-Rauzer Attack |
| 5. R Ekstroem vs V Tukmakov |
| ½-½ | 47 |
2001 |
Zuerich op | B22 Sicilian, Alapin |
| 6. R Ekstroem vs I A Nataf |
| 1-0 | 56 |
2001 |
2nd IECC | B30 Sicilian |
| 7. R Ekstroem vs V Chuchelov |
| ½-½ | 49 |
2001 |
2nd IECC | B22 Sicilian, Alapin |
| 8. R Ekstroem vs M Kobalia |
| ½-½ | 44 |
2001 |
2nd IECC | B22 Sicilian, Alapin |
| 9. R Ekstroem vs Bu Xiangzhi |
| ½-½ | 15 |
2002 |
Bled Olympiad | B22 Sicilian, Alapin |
| 10. R Ekstroem vs I Nemet |
| 1-0 | 36 |
2004 |
Swiss Championship | B22 Sicilian, Alapin |
| 11. R Ekstroem vs J Gallagher |
 | ½-½ | 21 |
2004 |
Swiss Championship | B22 Sicilian, Alapin |
| 12. R Ekstroem vs G Papp |
| ½-½ | 52 |
2006 |
Mitropa Cup | B22 Sicilian, Alapin |
| 13. R Ekstroem vs D Kontic |
| ½-½ | 21 |
2009 |
10th European Individual Championship | B22 Sicilian, Alapin |
| 14. R Ekstroem vs R Wojtaszek |
| ½-½ | 19 |
2009 |
10th European Individual Championship | B22 Sicilian, Alapin |