Chamberlain, Stephen
Current rating: 1485
Record: 5-6-1
| Grand Prix Boston 2003 (LGN limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 35 | Robert, Marc-Andre (1500) | Won 2-0 | +191482 |
| 2sealed | 138 | Krug, Josh (1482) | Lost 0-2 | -181464 |
| 3sealed | 165 | Dove, Michael (1622) | Won 2-1 | +201484 |
| 4sealed | 104 | Wagner, Bob (1454) | Lost 1-2 | -181466 |
| 5sealed | 186 | Assunto, Nick (1499) | Won 2-0 | +181484 |
| 6sealed | 102 | An, Kevin (1486) | Won 2-1 | +181502 |
| 7sealed | 75 | Haxton, Isaac (1543) | Lost 0-2 | -171485 |
| average opponent: 1512record: 4-3 | new rating: 1485 | |||
| Grand Prix Philadelphia 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 142 | McGee, Thorin (1500) | Lost 0-2 | -181482 |
| 2sealed | 220 | sohmonek, Steven (1483) | Won 2-0 | +181500 |
| 3sealed | 186 | Scheffenacker, Michael (1500) | Lost 0-2 | -181482 |
| 4sealed | 219 | Lavish, Andrew (1482) | Draw 1-1 | 01482 |
| 5sealed | 189 | Kraft, Brian (1417) | Lost 0-2 | -191463 |
| average opponent: 1476record: 1-3-1 | new rating: 1463 | |||