Williams, John
Current rating: 1457
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 303 | Wolfe, Nigel (1500) | Lost 0-2 | -181477 |
| 2sealed | 439 | Burrell, Emily (1486) | Won 2-0 | +181495 |
| 3sealed | 245 | Robbins, Casey (1408) | Lost 1-2 | -201475 |
| 4sealed | 368 | O'Hara, Patrick (1481) | Lost 1-2 | -181457 |
| top | average opponent: 1469record: 1-3 | new rating: 1457 | ||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 38 | Skinner, Steven (1523) | Won 2-0 | +181537 |
| 2standard | 297 | Waud, Jasmine (1518) | Won 2-0 | +171554 |
| 3standard | 91 | Gellert, Kyle (1701) | Lost 0-2 | -151539 |
| 4standard | 257 | Ho, Kevin (1421) | Won 2-0 | +161555 |
| 5standard | 252 | Burrows-Johnson, Andrew (1534) | Lost 0-2 | -181537 |
| 6standard | 438 | Kuster, Thomas (1414) | Won 2-0 | +151552 |
| 7standard | 367 | Rapien, Taylor (1535) | Lost 0-2 | -181534 |
| 8standard | 291 | Milmine, Tyler (1433) | Lost 0-2 | -201514 |
| 9standard | 230 | Lepine, Tomy (1426) | Lost 0-2 | -191495 |
| top | average opponent: 1501record: 4-5 | new rating: 1495 | ||
| Grand Prix Phoenix 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 22 | Shipley, Harry (1500) | Won 2-1 | +181518 |
| 2extended | 29 | Kuykendall, Dave (1544) | Won 2-1 | +181536 |
| 3extended | 28 | Stocks, Jonathan (1536) | Lost 0-2 | -181518 |
| 4extended | 56 | Elkins, Dallas (1518) | Lost 0-2 | -181500 |
| 5extended | 73 | Mark, Danny (1515) | Won 2-0 | +191519 |
| 6extended | 55 | Jarusinsky, Jason (1521) | Won 2-0 | +181537 |
| 7extended | 26 | Dwyer, John (1534) | Lost 1-2 | -181519 |
| top | average opponent: 1524record: 4-3 | new rating: 1519 | ||