McCormack, John
Current rating: 1468
Record: 3-5
| Grand Prix Calgary 2013 (M14 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 178 | Moffatt, Cameron (1500) | Lost 0-0 | -181482 |
| 2standard | 2 | Detchon, Jordie (1518) | Lost 1-2 | -171465 |
| 3standard | 134 | Darlington, Kenny (1503) | Lost 0-2 | -181447 |
| 4standard | 213 | Klein, Brendan (1481) | Lost 1-2 | -171430 |
| 5standard | 236 | Olstad, Darryl (1466) | Won 2-0 | +191449 |
| 6standard | 184 | Kalmring, Steven (1434) | Lost 1-2 | -191430 |
| 7standard | 178 | Boyd, Grand (1463) | Won 2-0 | +191449 |
| 8standard | 147 | Heung, Tsz On (1481) | Won 2-0 | +191468 |
| average opponent: 1481record: 3-5 | new rating: 1468 | |||