O. Hammarberg
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Uppsala op | ??/??/1969 | 0 |  Sweden |
Most Played Openings as White
| ECO | Opening | Games |
| B37 | Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg7 | 1 games |
| C42 | Petrov's defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
