Demander, Carl
Current rating: 1552
Record: 8-6
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 90 | Scalia, Matt (1500) | Won 2-0 | +181518 |
| 2sealed | 193 | Dubois, Joe (1463) | Won 2-0 | +171535 |
| 3sealed | 26 | Baum, Nathan (1680) | Lost 1-2 | -151520 |
| 4sealed | 187 | Growke, Vince (1498) | Won 2-1 | +171537 |
| 5sealed | 54 | Nunes, James (1503) | Lost 0-2 | -181519 |
| 6sealed | 123 | Prieto, Luis Delfin (1522) | Won 2-1 | +181537 |
| 7sealed | 117 | Trottier, Charles (1540) | Won 2-0 | +181555 |
| 8sealed | 97 | Chapin, Patrick (1816) | Won 2-0 | +221577 |
| 9sealed | 50 | Scott-Vargas, Luis (2198) | Won 2-1 | +281605 |
| 10draft | 15 | Thomas, Kevin (1580) | Won 2-1 | +181623 |
| 11draft | 68 | Zheng, Frank (1710) | Lost 1-2 | -161607 |
| 12draft | 48 | Dos Remedios, Aaron (1594) | Lost 0-2 | -191588 |
| 13draft | 50 | Bond, Stephen (1550) | Lost 0-2 | -181570 |
| 14draft | 2 | Knox, Joshua L (1570) | Lost 1-2 | -181552 |
| average opponent: 1623record: 8-6 | new rating: 1552 | |||