Ralph Ostertag
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Afro op | ??/??/1998 | 1752 |  Germany |
| Badenweiler op | ??/??/1994 | 672 | Germany |
Ralph Ostertag Repertoire with White pieces (most played)
| ECO | Opening | Games |
| B06 | Robatsch (modern) defence | 1 games |
| C24 | Bishop's opening, Berlin defence | 1 games |
| B09 | Pirc, Austrian attack | 1 games |
| B14 | Caro-Kann, Panov-Botvinnik attack, 5...e6 | 1 games |
Ralph Ostertag Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| B00 | King's pawn opening | 2 games |
| B06 | Robatsch (modern) defence | 1 games |
| A10 | English opening | 1 games |
| B20 | Sicilian defence | 1 games |
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