Cook, Nathon
Current rating: 1399
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 78 | Grahame, Brad (1502) | Lost 0-2 | -171448 |
| 4standard | 357 | Fuhrmann, Ben (1518) | Lost 1-2 | -171431 |
| 5standard | 417 | Flansberry, Josh (1523) | Lost 0-2 | -161415 |
| 6standard | 542 | Jury, Nick (1542) | Lost 0-2 | -161399 |
| top | average opponent: 1521record: 0-4 | new rating: 1399 | ||
| Grand Prix Ottawa 2014 (KTK limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 94 | Root, Wesley (1544) | Lost 0-2 | -181502 |
| 2sealed | 356 | Clackdoyle, Duncan (1482) | Won 2-1 | +181520 |
| 3sealed | 461 | Murphy, Matthew J (1513) | Lost 0-2 | -181502 |
| 4sealed | 445 | Ball, Mike (1482) | Lost 1-2 | -191483 |
| 5sealed | 491 | Labelle, Chris (1468) | Lost 0-2 | -181465 |
| top | average opponent: 1498record: 1-4 | new rating: 1465 | ||
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 45 | Birku, Samson (1431) | Won 2-0 | +171517 |
| 2sealed | 194 | Bishop, Eric (1405) | Lost 1-2 | -201497 |
| 3sealed | 489 | Lyons, Brian (1500) | Won 2-1 | +181515 |
| 4sealed | 293 | Monroe, Mildred (1517) | Lost 1-2 | -181497 |
| 5sealed | 460 | Pham, Daniel (1782) | Won 2-1 | +231520 |
| top | average opponent: 1527record: 3-2 | new rating: 1520 | ||