Samuelson, David
Current rating: 1446
Record: 2-5
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 84 | White, Corey (1500) | Won 2-0 | +181518 |
| 2sealed | 195 | Celso, Jonathan (1518) | Lost 1-2 | -181500 |
| 3sealed | 592 | Quinones, Tomas (1500) | Lost 0-2 | -181482 |
| 4sealed | 704 | Sigrist, Christian (1482) | Won 2-0 | +181500 |
| 5sealed | 497 | Daudelin, Andew (1499) | Lost 0-2 | -181482 |
| 6sealed | 604 | Sobkowicz, Tim (1484) | Lost 0-2 | -181464 |
| 7sealed | 498 | White, Timothy (1464) | Lost 0-2 | -181446 |
| average opponent: 1492record: 2-5 | new rating: 1446 | |||