Griffiths, Jay E
Current rating: 1430
Record: 1-5
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 340 | Thomson, Christopher (1464) | Lost 0-2 | -181447 |
| 2sealed | 641 | Mueller, Alex (1515) | Lost 0-2 | -171430 |
| average opponent: 1489record: 0-2 | new rating: 1430 | |||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 554 | Wojceshonek, Bradley (1500) | Lost 1-2 | -181482 |
| 2sealed | 628 | Szolopiak, James (1549) | Lost 0-2 | -171465 |
| 3sealed | 699 | Zolenski, Brian (1464) | Won 2-1 | +181483 |
| 4sealed | 690 | Anderson, William (1482) | Lost 1-2 | -181465 |
| average opponent: 1499record: 1-3 | new rating: 1465 | |||