Shell, Alexander
Current rating: 1437
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 408 | Hallett, Robbie (1500) | Lost 1-2 | -171448 |
| 2sealed | 508 | Boulter, James (1482) | Won 2-1 | +191467 |
| 3sealed | 565 | Romao, Carlos (1774) | Lost 0-2 | -131454 |
| 4sealed | 670 | Egolf, Julian (1483) | Lost 0-2 | -171437 |
| top | average opponent: 1560record: 1-3 | new rating: 1437 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 26 | Vanwert, Chris (1553) | Won 2-0 | +191519 |
| 3sealed | 11 | Lewis, Scott (1541) | Lost 0-2 | -181501 |
| 4sealed | 126 | Orr, Jim (1518) | Lost 0-2 | -181483 |
| 5sealed | 251 | Hoffman, James (1482) | Lost 1-2 | -181465 |
| top | average opponent: 1523record: 1-3 | new rating: 1465 | ||
| Grand Prix Boston 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 101 | Krempels, Craig (1500) | Lost 0-2 | -181482 |
| 2sealed | 198 | Kassotis, Nick (1482) | Won 2-0 | +181500 |
| 3sealed | 197 | Spears, Jason (1500) | Lost 1-2 | -181482 |
| 4sealed | 204 | Lalonde, Martin (1482) | Won 2-1 | +181500 |
| 5sealed | 167 | Robillard, Richard (1500) | Won 2-0 | +181518 |
| 6sealed | 112 | Tice, Doug (1504) | Lost 0-2 | -181500 |
| top | average opponent: 1495record: 3-3 | new rating: 1500 | ||