Walker, Dennis
Current rating: 1548
Record: 21-19
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 149 | Thompson, Craig (1500) | Won 2-0 | +181534 |
| 2standard | 214 | Herb, Ian (1518) | Won 2-1 | +181552 |
| 3standard | 188 | Wright, Christian (1517) | Won 2-0 | +171569 |
| 4standard | 173 | Isgur, Benjamin (1600) | Lost 1-2 | -171552 |
| 5standard | 123 | Williams, Mike J. (1482) | Won 2-0 | +161568 |
| 6standard | 127 | Ali, Rebecca (1471) | Won 2-1 | +171585 |
| 7standard | 114 | Taylor, Dustin (1598) | Lost 1-2 | -181567 |
| 8standard | 139 | Patel, Hemant (1527) | Lost 0-2 | -191548 |
| top | average opponent: 1527record: 5-3 | new rating: 1548 | ||
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 48 | Echavarria, Carlos (1482) | Won 2-1 | +181513 |
| 2sealed | 30 | Mansoor, Mat M (1547) | Lost 1-2 | -181495 |
| 3sealed | 151 | McCoy, Kurtis (1605) | Won 2-0 | +201515 |
| 4sealed | 137 | Alden, Matt (1465) | Won 2-1 | +171532 |
| 5sealed | 155 | Benson, Jonathan (1616) | Lost 0-2 | -161516 |
| 6sealed | 187 | Miller, Jake C (1578) | Won 2-0 | +191535 |
| 7sealed | 136 | Watts, Zach (1492) | Lost 1-2 | -191516 |
| top | average opponent: 1541record: 4-3 | new rating: 1516 | ||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 19 | Andrews, Jonathan (1500) | Won 2-0 | +181512 |
| 2extended | 154 | Bezrutczyk, Erik (1542) | Won 2-1 | +181530 |
| 3extended | 55 | Young, Dane (1638) | Lost 0-2 | -161514 |
| 4extended | 241 | Fanjoy, Ben (1560) | Lost 1-2 | -171497 |
| 5extended | 341 | Swartz, Ben (1444) | Won 2-0 | +171514 |
| 6extended | 163 | Potvin, Matt (1444) | Lost 0-2 | -191495 |
| top | average opponent: 1521record: 3-3 | new rating: 1495 | ||
| Grand Prix New Jersey 2006 (TSP limited) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 180 | Landry, Adam (1518) | Won 2-1 | +181527 |
| 3sealed | 135 | Nichols, James (1454) | Lost 0-2 | -201507 |
| 4sealed | 146 | Baum, Nathan (1644) | Won 2-1 | +211528 |
| 5sealed | 86 | Grusenmeyer, Matthew P (1536) | Won 2-1 | +181546 |
| 6sealed | 74 | Gotimer, Daniel (1574) | Lost 1-2 | -171529 |
| 7sealed | 94 | Navickas, Justin D (1539) | Lost 0-2 | -181511 |
| 8sealed | 162 | Ravitz, Joshua (1561) | Lost 0-2 | -171494 |
| top | average opponent: 1546record: 3-4 | new rating: 1494 | ||
| Grand Prix Richmond 2006 (GPT limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Taylor, Justin (1500) | Won 2-1 | +191504 |
| 2sealed | 13 | Sears, Charles (1555) | Won 2-1 | +191523 |
| 3sealed | 45 | Stavola, Kate (1780) | Won 2-1 | +221545 |
| 4sealed | 60 | De Simone, Brian (1478) | Lost 0-2 | -191526 |
| 5sealed | 76 | Dean, J. Evan (1494) | Lost 0-2 | -191507 |
| 6sealed | 98 | Grevers, Charley (1519) | Won 2-1 | +191526 |
| 7sealed | 92 | Parker, Zach (1583) | Lost 1-2 | -171509 |
| top | average opponent: 1558record: 4-3 | new rating: 1509 | ||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 71 | Smith, Kyle (1486) | Won 2-0 | +181518 |
| 3block | 142 | Ziegler, Eric (1695) | Lost 1-2 | -151503 |
| 4block | 219 | Enss, Matt (1494) | Lost 1-2 | -181485 |
| 5block | 215 | Fishman, Alex (1499) | Won 2-1 | +181503 |
| 6block | 188 | Barnes, Will (1517) | Lost 0-2 | -181485 |
| top | average opponent: 1538record: 2-3 | new rating: 1485 | ||