Boies, William
Current rating: 1401
Record: 4-10-2
| Grand Prix Toronto 2019 (modern) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 408 | Macdonald, Geordie (1500) | Lost 1-2 | -171433 |
| 2modern | 413 | Cripps, Alex (1545) | Draw 1-1 | +21435 |
| 3modern | 535 | Leitner, Robert (1493) | Lost 1-2 | -171418 |
| 4modern | 587 | Eaddy, Andrew (1426) | Lost 1-2 | -171401 |
| top | average opponent: 1491record: 0-3-1 | new rating: 1401 | ||
| Grand Prix Montreal 2018 (GRN limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 321 | Grenier, Tommy (1449) | Lost 1-2 | -191467 |
| 2sealed | 348 | Boivin, Francois (1491) | Lost 0-2 | -181449 |
| 3sealed | 464 | Arthur, Graham (1413) | Won 2-1 | +181467 |
| 4sealed | 405 | Tremblay, Cedrick (1566) | Lost 0-2 | -171450 |
| top | average opponent: 1480record: 1-3 | new rating: 1450 | ||
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 234 | Gauder, Jarrett (1497) | Lost 0-2 | -181465 |
| 2standard | 501 | Del Castillo, Miguel (1464) | Draw 1-1 | 01465 |
| 3standard | 633 | Falabella, Michael (1483) | Won 2-0 | +181483 |
| 4standard | 492 | Fetty, Jonathan (1492) | Lost 0-2 | -181465 |
| 5standard | 572 | Eckert, Mallory (1482) | Won 2-0 | +191484 |
| 6standard | 473 | Petrescu, Adrian (1564) | Won 2-1 | +191503 |
| 7standard | 317 | Marren, Shane (1521) | Lost 0-2 | -171486 |
| top | average opponent: 1501record: 3-3-1 | new rating: 1486 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1795 | Stout, John (1540) | Lost 0-2 | -171483 |
| top | record: 0-1 | new rating: 1483 | ||