Castanon, Juan
Current rating: 1516
Record: 4-3
| Grand Prix Seattle 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 93 | Arant, Gary (1500) | Won 2-1 | +181518 |
| 2extended | 36 | Gutzmer, Jimmy (1518) | Won 2-1 | +181536 |
| 3extended | 37 | Goddard, Maxwell (1469) | Won 2-0 | +171553 |
| 4extended | 34 | Angulo, Enrique (1554) | Lost 0-2 | -181535 |
| 5extended | 50 | Yuse, Jeremy (1535) | Lost 0-2 | -181517 |
| 6extended | 103 | Gadberry, Brett (1523) | Won 2-0 | +181535 |
| 7extended | 50 | Pine, Ricky (1508) | Lost 0-2 | -191516 |
| average opponent: 1515record: 4-3 | new rating: 1516 | |||