Costin, Emmett
Current rating: 1461
Record: 4-6
| Grand Prix Toronto 2019 (modern) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 136 | Poirier, Jacob (1500) | Lost 1-2 | -191498 |
| 2modern | 503 | Jackson, Thomas (1443) | Lost 1-2 | -191479 |
| 3modern | 609 | Bibeau, Julien (1466) | Lost 1-2 | -181461 |
| average opponent: 1470record: 0-3 | new rating: 1461 | |||
| Grand Prix Toronto 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 488 | Wright, Patrick (1548) | Lost 0-2 | -171483 |
| 2modern | 571 | Leung, Allan (1414) | Won 2-0 | +171500 |
| 3modern | 419 | Dillon, Matthew (1503) | Won 2-1 | +181518 |
| 4modern | 311 | Egolf, Michael (1459) | Won 2-1 | +171535 |
| 5modern | 186 | Ireland, Graham (1508) | Won 2-1 | +171552 |
| 6modern | 203 | Carlino, Steffen (1584) | Lost 0-2 | -171535 |
| 7modern | 246 | Golle, Jacob (1526) | Lost 1-2 | -181517 |
| average opponent: 1506record: 4-3 | new rating: 1517 | |||