Oliver Pietrzak
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Bezirksliga 0405 | 11/21/2004 | 680 | Germany |
| Sauerland Bezirksliga 0304 | 10/12/2003 | 1491 | Germany |
| Halver-ch | 09/14/2003 | 1455 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| D24 | Queen's Gambit Accepted, 4.Nc3 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D00 | Queen's pawn game | 3 games |
| D02 | Queen's pawn game | 1 games |
| A28 | English, four knights system | 1 games |
| C50 | King's pawn game | 1 games |


Germany