Herechuk, Keith
Current rating: 1435
Record: 4-8
| Grand Prix Niagara Falls 2019 (legacy) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 31 | Miller, Brian D (1574) | Won 2-1 | +201486 |
| 3legacy | 207 | Abenhaim, Julien (1504) | Lost 0-2 | -181468 |
| 4legacy | 174 | Russell, Tyler (1589) | Lost 0-2 | -161452 |
| 5legacy | 238 | Gluchow, Yamine (1486) | Lost 0-2 | -171435 |
| average opponent: 1538record: 1-3 | new rating: 1435 | |||
| Grand Prix Toronto 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 70 | Newett, Summer (1500) | Lost 1-2 | -181482 |
| 2modern | 406 | Jobin, Jean-Philippe (1591) | Lost 1-2 | -161466 |
| 3modern | 613 | Morin, Ronnie (1460) | Won 2-0 | +181484 |
| 4modern | 534 | Lechner, Thomas (1482) | Lost 0-2 | -181466 |
| 5modern | 538 | Menard, Miguel (1468) | Lost 1-2 | -181448 |
| 6modern | 453 | Nightingale, Tim (1466) | Won 2-1 | +181466 |
| 7modern | 375 | Trottier, Eric (1454) | Lost 1-2 | -181448 |
| 8modern | 308 | Thomas-Fulford, Michael (1448) | Won 2-0 | +181466 |
| average opponent: 1484record: 3-5 | new rating: 1466 | |||