Deddens, Herman
Current rating: 1462
Record: 1-3
| Grand Prix Amsterdam 2011 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 850 | Malanaphy, John (1484) | Lost 1-2 | -181482 |
| 2legacy | 870 | Wanschers, Wilko (1481) | Won 2-1 | +181500 |
| 3legacy | 796 | McDowell, Darrell (1446) | Lost 1-2 | -191481 |
| 4legacy | 992 | Boilevin, Jerome (1421) | Lost 0-2 | -191462 |
| average opponent: 1458record: 1-3 | new rating: 1462 | |||