B. Holtrop
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Zwolle Windesheim op-B | 03/19/2004 | 64 | Netherlands |
| Zwolle KPMG op | 03/11/2000 | 1901 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| A57 | Benko gambit | 1 games |
| D87 | Gruenfeld, exchange, Spassky variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| E04 | Catalan, open, 5.Nf3 | 1 games |


Netherlands