Powell, George
Current rating: 1611
| Grand Prix Manchester 2014 (Theros block) | starting rating: 1570 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 219 | Voss, Robert (1427) | Won 2-0 | +161586 |
| 2block | 244 | Moorhouse, Scott (1519) | Lost 0-2 | -201566 |
| 3block | 364 | Grant, Edward (1499) | Lost 0-2 | -191547 |
| 4block | 573 | Janes, Harry (1481) | Won 2-1 | +171564 |
| 5block | 398 | Barnes, James (1500) | Won 2-0 | +171581 |
| 6block | 275 | Colley, Dan (1487) | Lost 1-2 | -201561 |
| 7block | 369 | Harpin, Jonathan (1496) | Won 2-1 | +171578 |
| 8block | 240 | Waterhouse, Mark (1544) | Won 2-1 | +171595 |
| 9block | 145 | Zmyslowski, Piotr (1481) | Won 2-1 | +161611 |
| top | average opponent: 1493record: 6-3 | new rating: 1611 | ||
| Grand Prix Paris 2014 (legacy) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 216 | Avril, Francois (1506) | Lost 1-2 | -191540 |
| 2legacy | 443 | Poulain, Samuel (1608) | Won 2-1 | +201560 |
| 3legacy | 474 | Nohut, Kadit (1499) | Lost 1-2 | -201540 |
| 4legacy | 562 | van Sickle, Joseph (1523) | Lost 1-2 | -181522 |
| 5legacy | 642 | Maillot, Bruno (1512) | Won 2-0 | +181540 |
| 6legacy | 542 | Meijers, Vincent (1480) | Won 2-1 | +171557 |
| 7legacy | 117 | Verdugo Navarro, (1496) | Lost 1-2 | -191538 |
| 8legacy | 416 | Kopecky, Leos (1394) | Won 2-0 | +151553 |
| 9legacy | 298 | Bartak, Martin (1508) | Won 2-0 | +171570 |
| top | average opponent: 1503record: 5-4 | new rating: 1570 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 292 | Rico Bleda, Alejandro (1705) | Draw 1-1 | +41504 |
| 2sealed | 467 | Wicher, Adam (1633) | Draw 1-1 | +21506 |
| 3sealed | 713 | Hauchard, Francois (1503) | Lost 1-2 | -181488 |
| 4sealed | 864 | Simpson, Craig (1464) | Won 2-0 | +181506 |
| 5sealed | 721 | Larsen, Trine (1417) | Lost 1-2 | -201486 |
| 6sealed | 705 | Lilly, Sale (1503) | Won 2-0 | +181504 |
| 7sealed | 561 | Johnson, Jho (1484) | Won 1-0 | +181522 |
| 8sealed | 425 | Fontaine, Marc (1700) | Won 2-0 | +211543 |
| 9sealed | 304 | Juntti, Juho (1443) | Won 2-0 | +161559 |
| top | average opponent: 1539record: 5-2-2 | new rating: 1559 | ||