Doran, Marcus
Current rating: 1618
Record: 11-5-1
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1545 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 360 | Franzini, Giancarlo (1464) | Lost 0-2 | -191526 |
| 2sealed | 541 | Giannopoulos, Steve (1545) | Won 2-0 | +181544 |
| 3sealed | 513 | Vardell, Andrew (1500) | Draw 1-1 | -11543 |
| 4sealed | 543 | Josef, Adam E (1500) | Won 2-1 | +181561 |
| 5sealed | 482 | Hong, John (1530) | Won 2-1 | +171578 |
| 6sealed | 417 | Hayes, Ben (1791) | Won 2-0 | +221600 |
| 7sealed | 381 | Smith, Kevin (1539) | Won 2-0 | +171617 |
| 8sealed | 358 | Lebel, Maxime (1576) | Won 2-0 | +171634 |
| 9sealed | 344 | O'Donnell, Brendan (1766) | Lost 0-2 | -161618 |
| average opponent: 1579record: 6-2-1 | new rating: 1618 | |||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 90 | Parrott, Randall (1500) | Won 2-1 | +181518 |
| 2sealed | 57 | Gregath, Brent (1541) | Lost 1-2 | -181500 |
| 3sealed | 272 | Byrum, James (1500) | Won 2-0 | +181518 |
| 4sealed | 260 | Karabell, Al (1520) | Won 2-1 | +181536 |
| 5sealed | 165 | Rocha, Jerret (1631) | Won 2-0 | +201556 |
| 6sealed | 46 | Yurchick, Adam (1990) | Lost 1-2 | -101546 |
| 7sealed | 191 | Laliberte, Peter F (1536) | Won 2-1 | +171563 |
| 8sealed | 134 | Griffin, Christian (1556) | Lost 0-2 | -181545 |
| average opponent: 1597record: 5-3 | new rating: 1545 | |||