Williams, David
Current rating: 1415
Record: 12-20
| Grand Prix Charlotte 2016 (modern) | starting rating: 1365 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 472 | Riggins, Cody (1500) | Won 2-1 | +201385 |
| 2modern | 363 | Haldeman, Alexander (1543) | Won 2-1 | +211406 |
| 3modern | 106 | Sponholz, Richard (1409) | Won 2-0 | +181424 |
| 4modern | 337 | Sturm, Nate (1554) | Lost 1-2 | -161408 |
| 5modern | 475 | Sherrill, Hunter (1538) | Lost 0-2 | -151393 |
| 6modern | 486 | Rothman, Matthew (1487) | Won 2-1 | +191412 |
| 7modern | 236 | Mendonca, Rafael (1786) | Lost 0-2 | -111401 |
| 8modern | 449 | Nestico, Adrian (1517) | Won 2-1 | +201421 |
| 9modern | 366 | Gentile, Greg (1475) | Won 2-0 | +191440 |
| 10modern | 237 | Ferguson, Cormac (1541) | Lost 1-2 | -161424 |
| 11modern | 307 | Linne, Mason (1659) | Lost 0-2 | -141410 |
| 12modern | 278 | Perez, Joshua (1482) | Lost 0-2 | -171393 |
| 13modern | 144 | Kilian, Micah (1438) | Won 2-0 | +191412 |
| 14modern | 207 | Bruce, Adam (1490) | Lost 0-2 | -161396 |
| 15modern | 188 | Egan, Kevin (1444) | Won 2-0 | +191415 |
| top | average opponent: 1524record: 8-7 | new rating: 1415 | ||
| Grand Prix Dallas-Fort Worth 2015 (ORI limited) | starting rating: 1370 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 31 | Krumholz, Michael (1637) | Lost 1-2 | -141356 |
| 2sealed | 470 | Barnett, Richard (1464) | Lost 1-2 | -161340 |
| 3sealed | 712 | Bosworth, James (1464) | Won 2-0 | +211361 |
| 4sealed | 704 | Sconci, Jacob (1462) | Won 2-0 | +201381 |
| 5sealed | 661 | Eggert, Mark (1499) | Lost 1-2 | -161365 |
| top | average opponent: 1505record: 2-3 | new rating: 1365 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1418 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 101 | Clark, Travis (1577) | Lost 0-2 | -151403 |
| 2sealed | 495 | Williams, Josiah (1482) | Lost 0-2 | -171386 |
| 3sealed | 519 | Jett, Erik (1466) | Lost 0-2 | -161370 |
| top | average opponent: 1508record: 0-3 | new rating: 1370 | ||
| Grand Prix Denver 2015 (KTK standard) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 175 | Kimpland, Brandon (1500) | Lost 0-2 | -171418 |
| top | record: 0-1 | new rating: 1418 | ||
| Grand Prix Salt Lake City 2014 (M15 limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 166 | Stokes, Erik (1553) | Lost 0-2 | -161450 |
| 2sealed | 240 | Pummill, Rand (1481) | Won 2-1 | +181468 |
| 3sealed | 342 | Hess, Tyler (1576) | Lost 0-2 | -161452 |
| 4sealed | 381 | Eppler, Dane (1482) | Lost 0-2 | -171435 |
| top | average opponent: 1523record: 1-3 | new rating: 1435 | ||
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Geeo, Jacob (1551) | Lost 0-2 | -171466 |
| top | record: 0-1 | new rating: 1466 | ||
| Grand Prix Richmond 2006 (GPT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 151 | Vandover, Jesse (1565) | Lost 1-2 | -171483 |
| 2sealed | 171 | Nagelberg, James (1466) | Won 2-0 | +181501 |
| 3sealed | 138 | Gaddis, Gerald (1500) | Lost 1-2 | -181483 |
| top | average opponent: 1510record: 1-2 | new rating: 1483 | ||