Tattrie, Bill
Current rating: 1480
Record: 17-20-2
| Grand Prix Toronto 2019 (modern) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 358 | Krajewski, Aaron (1504) | Won 2-1 | +181487 |
| 2modern | 12 | Denno, Maxim (1485) | Lost 1-2 | -181469 |
| 3modern | 442 | Kulisz, Chris (1505) | Lost 1-2 | -171452 |
| 4modern | 473 | De Lanerolle, Varun (1482) | Won 2-1 | +181470 |
| 5modern | 417 | Lavigne, Jacob (1505) | Won 2-1 | +191489 |
| 6modern | 256 | Birrell, Ian (1775) | Won 2-0 | +231512 |
| 7modern | 201 | Aitchison, Evan (1569) | Lost 0-2 | -171495 |
| 8modern | 247 | Leduc Gauthier, Samuel (1635) | Lost 0-2 | -151480 |
| top | average opponent: 1557record: 4-4 | new rating: 1480 | ||
| Grand Prix Toronto 2018 (modern) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 254 | Shoffner, Sam (1531) | Won 2-0 | +181542 |
| 2modern | 247 | Larter, Brian (1590) | Lost 0-2 | -171525 |
| 3modern | 541 | Kain, Morgan (1493) | Lost 1-2 | -181507 |
| 4modern | 581 | Giffin, Noah (1482) | Lost 0-2 | -191488 |
| 5modern | 702 | Oostrom, Zack (1403) | Lost 0-2 | -191469 |
| top | average opponent: 1500record: 1-4 | new rating: 1469 | ||
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 31 | Beebe, Alexander (1509) | Draw 1-1 | 01498 |
| 3standard | 352 | Burden, Brad (1458) | Won 2-1 | +171515 |
| 4standard | 184 | Kor, Frank (1672) | Won 2-0 | +211536 |
| 5standard | 93 | Leon Valencia, Francisco (1763) | Lost 0-2 | -141522 |
| 6standard | 201 | Hunt, Brian (1579) | Won 2-0 | +191541 |
| 7standard | 135 | Schambier, Simon (1598) | Lost 1-2 | -171524 |
| 8standard | 242 | Kolasa, Zak (1532) | Draw 1-1 | 01524 |
| top | average opponent: 1587record: 3-2-2 | new rating: 1524 | ||
| Grand Prix Montreal 2015 (DTK limited) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Wagenhoffer, Robert (1500) | Won 2-1 | +191490 |
| 2sealed | 219 | Pineault, Mark (1544) | Won 2-0 | +191509 |
| 3sealed | 135 | Racine Leblanc, Samuel (1437) | Won 2-0 | +161525 |
| 4sealed | 65 | Grourke, Vincent (1660) | Lost 1-2 | -151510 |
| 5sealed | 131 | Kambourakis, Joseph (1906) | Won 2-1 | +251535 |
| 6sealed | 125 | Thibault, Stephane (1477) | Lost 1-2 | -201515 |
| 7sealed | 105 | Farmer, Tref (1520) | Won 2-0 | +191534 |
| 8sealed | 163 | Larochelle, Francis (1524) | Lost 1-2 | -191515 |
| 9sealed | 153 | Krangel, Eric (1525) | Lost 0-2 | -171498 |
| top | average opponent: 1566record: 5-4 | new rating: 1498 | ||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 34 | Herberman, Erin (1380) | Lost 1-2 | -191464 |
| 3standard | 362 | Spencer, Brian (1500) | Won 2-0 | +181482 |
| 4standard | 308 | Norek, Craig (1560) | Won 2-0 | +201502 |
| 5standard | 312 | Jaramillo, Blaven (1493) | Lost 0-2 | -191483 |
| 6standard | 248 | Ulanov, Denis (1798) | Lost 1-2 | -121471 |
| top | average opponent: 1546record: 2-3 | new rating: 1471 | ||
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 331 | Cormier, Rejean (1516) | Won 2-0 | +181518 |
| 3sealed | 181 | Anderson, Cody 2 (1516) | Lost 0-2 | -181500 |
| 4sealed | 345 | Kvetkosky, Wayne (1552) | Won 2-0 | +191519 |
| 5sealed | 132 | Segovia, Tristan (1503) | Lost 0-2 | -181501 |
| 6sealed | 295 | Calvez, Pierre (1528) | Lost 1-2 | -181483 |
| top | average opponent: 1523record: 2-3 | new rating: 1483 | ||