Koon, Brian
Current rating: 1516
Record: 3-2
| Grand Prix Boston 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 79 | Dart, Michael (1500) | Won 2-1 | +181518 |
| 2sealed | 54 | Folinus, Kevin (1518) | Won 2-0 | +181536 |
| 3sealed | 64 | Roystan, Andrew (1506) | Lost 0-2 | -191517 |
| 4sealed | 102 | Bonomo, Justin (1477) | Lost 1-2 | -181499 |
| 5sealed | 154 | Biasone, Joe (1484) | Won 2-0 | +171516 |
| average opponent: 1497record: 3-2 | new rating: 1516 | |||