Cassidy, Michael C
Current rating: 1437
Record: 5-9
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 43 | Lapp, Peter (1517) | Won 2-0 | +191466 |
| 2sealed | 192 | Waite, Paul (1500) | Lost 0-2 | -171449 |
| 3sealed | 260 | Wright, Jared (1518) | Lost 0-2 | -171432 |
| 4sealed | 485 | Vannelli, Daniel (1449) | Lost 1-2 | -171415 |
| 5sealed | 473 | URIBE, CARLOS (1463) | Won 2-0 | +191434 |
| 6sealed | 375 | Ford, Erik (1484) | Won 2-0 | +181452 |
| 7sealed | 288 | Sigrist, Kyle (1501) | Won 2-1 | +191471 |
| 8sealed | 188 | Ryan, Christopher (1518) | Lost 1-2 | -171454 |
| 9sealed | 153 | BAKER, JEFFREY W (1500) | Lost 0-2 | -171437 |
| average opponent: 1494record: 4-5 | new rating: 1437 | |||
| Grand Prix Denver 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 147 | Bechtel, Ray (1586) | Lost 0-2 | -161484 |
| 2block | 242 | Bingham, Tyrel (1485) | Won 2-0 | +181502 |
| 3block | 131 | Patti, Ryan (1483) | Lost 0-2 | -191483 |
| 4block | 227 | Butler, Dave (1482) | Lost 0-2 | -181465 |
| 5block | 238 | Croom, Garrett A (1464) | Lost 0-2 | -181447 |
| average opponent: 1500record: 1-4 | new rating: 1447 | |||