Cobb, James L
Current rating: 1499
Record: 3-3
| Grand Prix San Diego 2011 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 536 | Matsuo, Kenta (1500) | Lost 1-2 | -181482 |
| 2sealed | 526 | Martinez, Luke (1484) | Lost 0-2 | -181464 |
| 3sealed | 606 | Meyer, Gabriel (1357) | Won 2-0 | +161480 |
| 4sealed | 600 | Ferreiro, Bernardo (1483) | Won 2-0 | +181498 |
| 5sealed | 561 | Robinson, Ken (1499) | Won 2-0 | +181516 |
| 6sealed | 527 | McGrew, Brian (1553) | Lost 0-2 | -171499 |
| average opponent: 1479record: 3-3 | new rating: 1499 | |||