Chang, Michael Y
Current rating: 1516
| Grand Prix Toronto 2012 (modern) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 110 | Lemieux, Nick (1500) | Lost 0-2 | -191516 |
| top | record: 0-1 | new rating: 1516 | ||
| Grand Prix Montreal 2011 (M12 limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 181 | LaForest, Mark (1500) | Lost 0-2 | -181500 |
| 2sealed | 190 | Villeneuve, Christian (1483) | Won 2-0 | +171517 |
| 3sealed | 134 | Tremblay, Sebastien (1604) | Won 2-0 | +201537 |
| 4sealed | 98 | Crowder, Donavan (1537) | Won 2-1 | +181555 |
| 5sealed | 94 | Wells, Venu (1550) | Lost 0-2 | -181537 |
| 6sealed | 78 | Desousa, Justin S (1517) | Won 2-1 | +181555 |
| 7sealed | 67 | Searles, James (1532) | Lost 0-2 | -191536 |
| 8sealed | 99 | Quackenbush, Mark (1499) | Won 2-0 | +171553 |
| 9sealed | 63 | Szawlowski, Matthew (1528) | Lost 1-2 | -181535 |
| top | average opponent: 1528record: 5-4 | new rating: 1535 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 248 | Goldfarb, Mathew (1500) | Won 2-0 | +181518 |
| 2sealed | 162 | Noorani, Farooq S (1518) | Lost 1-2 | -181500 |
| 3sealed | 235 | Halucha, Robert (1500) | Won 2-0 | +181518 |
| 4sealed | 151 | Sawler, Daniel L (1518) | Lost 0-2 | -181500 |
| 5sealed | 202 | Ki, Wilson (1503) | Won 2-0 | +181518 |
| top | average opponent: 1508record: 3-2 | new rating: 1518 | ||