Cordell, Mark
Current rating: 1572
| Grand Prix Charlotte 2005 (extended) | starting rating: 1573 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 103 | Smee, James (1518) | Lost 0-2 | -191554 |
| 3extended | 86 | Heard, Joe (1500) | Won 2-0 | +171571 |
| 4extended | 95 | Hill, Cory (1519) | Won 2-1 | +171588 |
| 5extended | 41 | Calvert, Josh (1469) | Won 2-1 | +151603 |
| 6extended | 40 | Levin, Eugene (1764) | Lost 0-2 | -151588 |
| 7extended | 63 | Irvine, David (1673) | Lost 0-2 | -161572 |
| top | average opponent: 1574record: 3-3 | new rating: 1572 | ||
| Grand Prix Boston 2005 (extended) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 139 | Beckemeyer, Dustin (1500) | Lost 1-2 | -181502 |
| 2extended | 197 | Glass, Charles (1482) | Won 2-0 | +181520 |
| 3extended | 194 | Shapiro, Jeremy (1581) | Won 2-0 | +191539 |
| 4extended | 211 | Lynch, Sean T (1505) | Won 2-0 | +171556 |
| 5extended | 51 | Fischer, Nathan (1560) | Won 2-1 | +181574 |
| 6extended | 62 | Zhang, Stephen (1538) | Lost 0-2 | -181556 |
| 7extended | 120 | Gilbank, Ryan (1537) | Lost 1-2 | -191537 |
| 8extended | 103 | Paruntu, Yohanes (1518) | Won 2-0 | +181555 |
| 9extended | 82 | George, Frank (1534) | Won 2-1 | +181573 |
| top | average opponent: 1528record: 6-3 | new rating: 1573 | ||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 11 | Tatro, Andrew (1500) | Won 2-1 | +181518 |
| 2block | 11 | Jillson, Joseph (1518) | Won 2-0 | +181536 |
| 3block | 7 | Browne, Kristian (1518) | Won 2-1 | +181554 |
| 4block | 58 | Zajdner, Mark (1768) | Won 2-0 | +221576 |
| 5block | 20 | Heflin, Nick (1553) | Lost 1-2 | -191557 |
| 6block | 18 | Koenig, Joseph (1552) | Lost 1-2 | -181539 |
| 7block | 79 | Farina, Michael (1506) | Lost 1-2 | -191520 |
| top | average opponent: 1559record: 4-3 | new rating: 1520 | ||