John L.,
Current rating: 1560
Record: 6-3
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 158 | Canieso, Robert (1500) | Won 2-1 | +181518 |
| 2sealed | 113 | Michal, Brian (1518) | Won 2-0 | +181536 |
| 3sealed | 301 | Briscoe, Kenneth (1562) | Won 2-0 | +181554 |
| 4sealed | 127 | Carty, Chris (1565) | Won 2-0 | +191573 |
| 5sealed | 17 | Repka, Philip (1581) | Won 2-0 | +181591 |
| 6sealed | 22 | Krempels, Craig (2016) | Lost 1-2 | -111580 |
| 7sealed | 78 | Reda, Derek (1529) | Won 2-1 | +171597 |
| 8sealed | 70 | Bradbury, Wayne (1532) | Lost 1-2 | -191578 |
| 9sealed | 156 | BROOKS, JAMES (1573) | Lost 1-2 | -181560 |
| average opponent: 1597record: 6-3 | new rating: 1560 | |||