John G.,
Current rating: 1465
Record: 4-6-1
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 364 | Polly, John (1500) | Lost 0-2 | -181522 |
| 2sealed | 507 | Geyer, Steven (1483) | Lost 1-2 | -191503 |
| 3sealed | 684 | Campman, Andrew (1464) | Lost 0-2 | -191484 |
| 4sealed | 689 | Woods, Richard (1449) | Lost 0-2 | -191465 |
| average opponent: 1474record: 0-4 | new rating: 1465 | |||
| Grand Prix San Diego 2011 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2 | Rose, Christo (1500) | Won 2-0 | +181518 |
| 2sealed | 103 | Gray, Corbett (1681) | Lost 0-2 | -151503 |
| 3sealed | 127 | Lag Brotons, Alfonso (1445) | Won 2-1 | +171520 |
| 4sealed | 107 | Terry, Steven R (1502) | Draw 1-1 | 01520 |
| 5sealed | 130 | Contino, Jimmy (1542) | Won 2-0 | +181538 |
| 6sealed | 85 | Zuniga, Michael (1549) | Won 2-1 | +181556 |
| 7sealed | 53 | Brendemuhl, Bernd (1674) | Lost 0-2 | -161540 |
| average opponent: 1556record: 4-2-1 | new rating: 1540 | |||