Cahill, Stephen J
Current rating: 1537
Record: 8-6
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 91 | Wu, Diego (1463) | Lost 0-2 | -191464 |
| 2modern | 459 | Gormly, Kelly (1483) | Won 2-0 | +191483 |
| 3modern | 327 | Ali, Alexander (1500) | Won 2-0 | +181501 |
| 4modern | 255 | Vaid, Akhil (1505) | Won 2-1 | +181519 |
| 5modern | 187 | Liang, Yong Li (1562) | Lost 1-2 | -171502 |
| 6modern | 181 | Thomas, Brad (1522) | Lost 1-2 | -181484 |
| 7modern | 287 | Cadieux, Alex (1431) | Won 2-0 | +171501 |
| 8modern | 214 | Hackathorn, Robert (1483) | Won 2-1 | +181519 |
| 9modern | 163 | Deveines, Brandon (1539) | Won 2-1 | +181537 |
| average opponent: 1499record: 6-3 | new rating: 1537 | |||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 15 | Galarza, Carlos (1500) | Lost 0-2 | -181482 |
| 2sealed | 639 | Warne, Graham A (1482) | Won 2-0 | +181500 |
| 3sealed | 605 | Piela, Benny (1528) | Won 2-1 | +191519 |
| 4sealed | 306 | Werner, Cade (1518) | Lost 0-2 | -181501 |
| 5sealed | 552 | Chappell, Jonathon (1501) | Lost 0-2 | -181483 |
| average opponent: 1506record: 2-3 | new rating: 1483 | |||