Blackwell, George C
Current rating: 1528
Record: 5-4
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 417 | Alfano, Mike (1500) | Won 2-1 | +181518 |
| 2sealed | 499 | Ross-Latour, Jeremie (1536) | Won 2-1 | +181536 |
| 3sealed | 417 | Ziparo, Thomas J (1512) | Won 2-1 | +181554 |
| 4sealed | 395 | Froehlich, Eric (1845) | Lost 1-2 | -131541 |
| 5sealed | 459 | Hudas, Matthew (1710) | Won 2-1 | +211562 |
| 6sealed | 401 | Held, Jeffrey R (1556) | Lost 1-2 | -181544 |
| 7sealed | 421 | Job, Jonathan (1660) | Lost 1-2 | -161528 |
| 8sealed | 420 | Capobianco, Daniel (1518) | Won 2-0 | +181546 |
| 9sealed | 390 | Hoare, Gaven R (1536) | Lost 0-1 | -181528 |
| average opponent: 1597record: 5-4 | new rating: 1528 | |||