Walk, Devin
Current rating: 1422
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 158 | Watts, Russell (1498) | Lost 0-2 | -171437 |
| 2sealed | 351 | Charpia, Philip (1482) | Lost 0-2 | -171420 |
| 3sealed | 491 | Clark, Aaron (1506) | Won 2-0 | +201440 |
| 4sealed | 497 | Knapp, Daniel (1488) | Lost 0-2 | -181422 |
| top | average opponent: 1493record: 1-3 | new rating: 1422 | ||
| Grand Prix Columbus 2012 (modern) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 253 | Burton, Mike (1500) | Won 2-1 | +191464 |
| 2modern | 28 | Gillis, Daniel (1497) | Won 2-1 | +191483 |
| 3modern | 197 | Rodriguez, Juan C (1649) | Lost 0-2 | -151468 |
| 4modern | 201 | Brown, David L (1540) | Won 2-1 | +191487 |
| 5modern | 183 | King, Byron (1644) | Lost 0-2 | -151472 |
| 6modern | 228 | Young, Brandon (1491) | Lost 1-2 | -181454 |
| top | average opponent: 1553record: 3-3 | new rating: 1454 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 109 | Klein, Matthew (1461) | Lost 0-2 | -191481 |
| 2legacy | 209 | Lindburg, Kaitlin (1484) | Lost 1-2 | -181463 |
| 3legacy | 274 | Cavanaugh, Thomas (1464) | Lost 1-2 | -181445 |
| top | average opponent: 1470record: 0-3 | new rating: 1445 | ||