Walker, Brett
Current rating: 1552
Record: 17-15-2
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1577 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 273 | Bailey, Trenton (1427) | Won 2-1 | +151592 |
| 2sealed | 204 | Henry, Patrick (1429) | Lost 1-2 | -211571 |
| 3sealed | 387 | Born, Zachary M (1499) | Lost 1-2 | -191552 |
| top | average opponent: 1452record: 1-2 | new rating: 1552 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1136 | Greenfield, Patrick (1500) | Won 2-0 | +171588 |
| 2sealed | 761 | Gilleland, Ryan (1452) | Lost 0-2 | -211567 |
| 3sealed | 1124 | Ferris, Brandon (1500) | Won 2-0 | +171584 |
| 4sealed | 876 | Gledhill, James (1518) | Lost 1-2 | -191565 |
| 5sealed | 1056 | Hitchcock, Ian (1501) | Won 2-0 | +171582 |
| 6sealed | 889 | Lillard, Mario (1495) | Won 2-0 | +161598 |
| 7sealed | 793 | Styles, Mark (1478) | Won 2-1 | +161614 |
| 8sealed | 418 | Diamond, Ian P (1558) | Lost 1-2 | -191595 |
| 9sealed | 458 | Van Deelen, Mike (1601) | Lost 0-2 | -181577 |
| top | average opponent: 1511record: 5-4 | new rating: 1577 | ||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 282 | Papaccio, Nicholas (1500) | Won 2-0 | +191484 |
| 2standard | 110 | Cuenca, Nicolas (1650) | Won 2-1 | +211505 |
| 3standard | 4 | Daigle, Mathew (1517) | Won 2-0 | +181523 |
| 4standard | 5 | Aintrazi, Ali (1707) | Won 2-0 | +211544 |
| 5standard | 98 | Liberman, Eric D (1569) | Won 2-1 | +191563 |
| 6standard | 42 | Costa, Matthew (2009) | Won 2-0 | +251588 |
| 7standard | 18 | Vorel, Andrew (1613) | Lost 0-2 | -171571 |
| 8standard | 76 | Leister, Nicole (1709) | Won 2-1 | +201591 |
| 9standard | 35 | Brown, Max (1731) | Lost 1-2 | -151576 |
| 10standard | 42 | Loman, Anthony (1654) | Lost 1-2 | -171559 |
| 11standard | 78 | Stark, Ben S (1959) | Lost 0-2 | -111548 |
| 12standard | 89 | Caruso, Cody S (1500) | Won 2-0 | +171565 |
| 13standard | 89 | Galinkin, Erick (1519) | Lost 0-2 | -181547 |
| 14standard | 85 | Lynch, Brian (1816) | Won 2-0 | +221569 |
| 15standard | 67 | Lewis, Christopher (1494) | Won 2-1 | +171586 |
| 16standard | 57 | Vidugiris, Gaudenis (1749) | Lost 0-2 | -151571 |
| top | average opponent: 1669record: 10-6 | new rating: 1571 | ||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 160 | Walker, Daniel (1500) | Won 2-0 | +181518 |
| 2sealed | 207 | Meador, Greg (1518) | Lost 1-2 | -181500 |
| 3sealed | 221 | Leavy, Thomas (1501) | Lost 0-2 | -181482 |
| 4sealed | 434 | Zoz, Ben (1542) | Lost 0-2 | -171465 |
| 5sealed | 394 | Neal, John (1479) | Draw 1-1 | 01465 |
| 6sealed | 353 | Hashbarger, Erik G (1451) | Draw 1-1 | 01465 |
| top | average opponent: 1498record: 1-3-2 | new rating: 1465 | ||