| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. M Schoeneberg vs O Berg |
| ½-½ | 69 | 2003 | EU-ch Internet qual | B01 Scandinavian |
| 27. D Fernando vs O Berg |
| 1-0 | 40 | 2003 | EU-ch Internet qual | B90 Sicilian, Najdorf |
| 28. A Khruschiov vs O Berg |
 | 1-0 | 45 | 2004 | Calvia Olympiad | A70 Benoni, Classical with 7.Nf3 |
| 29. O Berg vs D Sharavdorj |
| 0-1 | 21 | 2004 | Calvia Olympiad | C02 French, Advance |
| 30. D Volpinari vs O Berg |
| 0-1 | 43 | 2004 | Calvia Olympiad | B33 Sicilian |
| 31. D Solomons vs O Berg |
| 1-0 | 50 | 2004 | Calvia Olympiad | A56 Benoni Defense |
| 32. O Berg vs I Karkanaqe |
| 0-1 | 49 | 2004 | Calvia Olympiad | C42 Petrov Defense |
| 33. S del Rio de Angelis vs O Berg |
| 1-0 | 42 | 2004 | Calvia Olympiad | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 34. M Merritt vs O Berg |
| 1-0 | 48 | 2004 | Calvia Olympiad | A30 English, Symmetrical |
| 35. O Berg vs L Patriarca |
| 1-0 | 28 | 2004 | Calvia Olympiad | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 36. T Thorhallsson vs O Berg |
| 1-0 | 52 | 2004 | Calvia Olympiad | B90 Sicilian, Najdorf |
| 37. O Berg vs G Kjartansson |
| 1-0 | 43 | 2006 | Nordic School-ch U20 | A22 English |
| 38. Shulman vs O Berg |
| 1-0 | 43 | 2010 | Khanty-Mansiysk Olympiad | D35 Queen's Gambit Declined |
| 39. O Berg vs T Nininahazwe |
| 1-0 | 29 | 2010 | Khanty-Mansiysk Olympiad | B23 Sicilian, Closed |
| 40. I Ivanisevic vs O Berg |
| 1-0 | 57 | 2010 | Khanty-Mansiysk Olympiad | D45 Queen's Gambit Declined Semi-Slav |
| 41. N Sakr vs O Berg |
| 0-1 | 30 | 2010 | Khanty-Mansiysk Olympiad | A07 King's Indian Attack |
| 42. O Berg vs S Kantinti |
| 1-0 | 39 | 2010 | Khanty-Mansiysk Olympiad | A07 King's Indian Attack |
| 43. O Berg vs Barsov |
| ½-½ | 15 | 2010 | Khanty-Mansiysk Olympiad | C02 French, Advance |
| 44. B Macias Murillo vs O Berg |
| 0-1 | 116 | 2010 | Khanty-Mansiysk Olympiad | E15 Queen's Indian |
| 45. I Seitaj vs O Berg |
| 1-0 | 49 | 2010 | Khanty-Mansiysk Olympiad | B22 Sicilian, Alapin |
| 46. J Al-Huwar vs O Berg |
| 0-1 | 76 | 2010 | Khanty-Mansiysk Olympiad | A33 English, Symmetrical |
| 47. J Gonzalez Garcia vs O Berg |
| ½-½ | 40 | 2010 | Khanty-Mansiysk Olympiad | E06 Catalan, Closed, 5.Nf3 |
| 48. O Berg vs M Younus |
| 1-0 | 43 | 2014 | Tromso Olympiad | B31 Sicilian, Rossolimo Variation |
| 49. B Michiels vs O Berg |
| 1-0 | 30 | 2014 | Tromso Olympiad | D35 Queen's Gambit Declined |
| 50. O Berg vs M Ortiz |
| 0-1 | 39 | 2014 | Tromso Olympiad | B23 Sicilian, Closed |
Kibitzing
