| Boudewijn Derkx | KNDB-rating: | 1-7-2020: | 1433 | 1-7-2019: | 1433 | 1-7-2018: | 1442 | 1-7-2017: | 1442 | 1-7-2016: | 1455 |
| | Virtual KNDB-rating: | 1437 | D | 732 results in database. | 207+ 85- 326= (Perc. 59.9%)* | * 114 regl., blitz-, rapidgames(s) etc. excluded from the statistics | 320 applets in database. | | |
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