Williams, David G
Current rating: 1495
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 181 | McConnell, Michael B (1462) | Lost 0-2 | -191495 |
| top | record: 0-1 | new rating: 1495 | ||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 177 | Brown, Brian (1462) | Lost 1-2 | -191499 |
| 3standard | 550 | Longo, Tyler (1452) | Draw 1-1 | -11498 |
| 4standard | 532 | Roop, David (1448) | Won 2-0 | +171515 |
| 5standard | 384 | Meadows, Matt (1482) | Won 2-1 | +181533 |
| 6standard | 252 | Carpenter, Stephen W (1520) | Lost 0-2 | -191514 |
| top | average opponent: 1473record: 2-2-1 | new rating: 1514 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 142 | Castro-Rappl, Christopher (1522) | Lost 1-2 | -181482 |
| 2sealed | 337 | Mong, Derek (1486) | Won 2-0 | +181500 |
| 3sealed | 373 | Arnold, Tommy (1446) | Won 2-0 | +171517 |
| 4sealed | 162 | Regnier, Warren (1518) | Won 2-1 | +181535 |
| 5sealed | 221 | Haines, Joseph (1532) | Lost 1-2 | -181517 |
| 6sealed | 178 | Wilson, Dayne (1508) | Won 2-1 | +181535 |
| 7sealed | 146 | Prieto, Danilo (1542) | Won 2-0 | +181553 |
| 8sealed | 95 | Louzon, Nick J (1504) | Lost 0-2 | -191534 |
| 9sealed | 130 | Heal, Bryan (1619) | Lost 0-2 | -161518 |
| top | average opponent: 1520record: 5-4 | new rating: 1518 | ||