Herman Siebelhoff
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Utrecht OKU II op | 05/??/2000 | 1622 | Netherlands |
| Groningen ABM op | ??/??/1999 | 286 | Netherlands |
| Haarlem AKN op 8th | 07/02/1999 | 769 | Netherlands |
| VCN SchaakFestival | 05/14/1999 | 1828 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| B25 | Sicilian, closed | 1 games |
| C22 | Centre game | 1 games |
| B29 | Sicilian, Nimzovich-Rubinstein variation | 1 games |
| C41 | Philidor's defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B53 | Sicilian, Chekhover variation | 1 games |
| B78 | Sicilian, dragon, Yugoslav attack, 10.O-O-O | 1 games |
| B52 | Sicilian, Canal-Sokolsky attack, 3...Bd7 | 1 games |
| A52 | Budapest defence | 1 games |


Netherlands