Corkum, Zachary
Current rating: 1410
Record: 1-6
| Grand Prix Montreal 2011 (M12 limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 51 | Mcnamara, Stephen (1500) | Lost 1-2 | -171446 |
| 2sealed | 149 | Arguin, Jean-philippe (1482) | Lost 1-2 | -171429 |
| 3sealed | 196 | Robert, Pierre Olivier (1402) | Lost 0-2 | -191410 |
| average opponent: 1461record: 0-3 | new rating: 1410 | |||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 160 | Ohler, Bobby K (1500) | Won 2-1 | +181518 |
| 2standard | 195 | Glasser, Roger (1490) | Lost 1-2 | -191499 |
| 3standard | 292 | Hill, Andrew (1500) | Lost 1-2 | -171482 |
| 4standard | 331 | Harry, Nick (1464) | Lost 1-2 | -191463 |
| average opponent: 1489record: 1-3 | new rating: 1463 | |||