Arayas, Andrew
Current rating: 1526
Record: 4-3
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 373 | Savage, Sam (1538) | Lost 0-2 | -171483 |
| 2sealed | 645 | McElhany jr, Robert (1481) | Won 2-0 | +181501 |
| 3sealed | 440 | Usner, Jacob (1500) | Lost 0-2 | -181483 |
| 4sealed | 782 | Chapman, Paul (1483) | Won 2-0 | +181501 |
| 5sealed | 563 | Staples, Fremont (1503) | Won 2-0 | +181519 |
| 6sealed | 503 | Solorio, Bob P (1497) | Won 2-1 | +171536 |
| 7sealed | 237 | Martell, Tom (1978) | Lost 1-2 | -101526 |
| average opponent: 1569record: 4-3 | new rating: 1526 | |||