Willeusen, Kamen
Current rating: 1445
Record: 2-5
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 166 | Karmol, Stephen (1464) | Lost 0-2 | -191481 |
| 2sealed | 417 | Neuharth, Nick A (1482) | Lost 0-2 | -181463 |
| 3sealed | 541 | Abel, Geoff (1464) | Won 2-0 | +181481 |
| 4sealed | 508 | Sims, Daniel (1484) | Lost 0-2 | -181463 |
| 5sealed | 466 | Collado, TRACY P (1464) | Won 2-1 | +181481 |
| 6sealed | 380 | Natta, Paul (1465) | Lost 0-2 | -181463 |
| 7sealed | 303 | Miller, Christopher (1455) | Lost 0-2 | -181445 |
| average opponent: 1468record: 2-5 | new rating: 1445 | |||