Kutarna, William
Current rating: 1475
Record: 6-8
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 446 | Reiber, Jason (1571) | Won 2-0 | +201503 |
| 2sealed | 247 | Carr, Stefan (1519) | Won 2-0 | +181521 |
| 3sealed | 31 | Victor, Adam (1799) | Lost 0-2 | -131508 |
| 4sealed | 214 | Siecker, Timothy (1579) | Won 2-0 | +191527 |
| 5sealed | 99 | Beland, Nicolas (1573) | Lost 0-2 | -171510 |
| 6sealed | 273 | Chrisjohn, Fletcher (1522) | Lost 1-2 | -181492 |
| 7sealed | 389 | Lyrette, Styve (1529) | Lost 1-2 | -171475 |
| average opponent: 1584record: 3-4 | new rating: 1475 | |||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 580 | LeClair, Greg (1500) | Lost 1-2 | -181482 |
| 2sealed | 556 | Mowrick, Shelly (1482) | Won 2-1 | +181500 |
| 3sealed | 464 | Seltzer, Eric (1500) | Lost 0-2 | -181482 |
| 4sealed | 559 | Habib, George (1483) | Won 2-0 | +181500 |
| 5sealed | 542 | Nicholson, Zack J (1525) | Lost 0-2 | -181482 |
| 6sealed | 500 | Geady, Sam (1482) | Won 2-1 | +181500 |
| 7sealed | 453 | Hong, John (1530) | Lost 0-2 | -171483 |
| average opponent: 1500record: 3-4 | new rating: 1483 | |||