McGregor, Sean
Current rating: 1565
| Grand Prix Philadelphia 2005 (legacy) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 101 | DeLorenzo, Vincent (1517) | Won 2-0 | +181542 |
| 2legacy | 89 | Miller, Rashad (1557) | Won 2-0 | +181560 |
| 3legacy | 56 | Taulbee, Brad (1752) | Lost 0-2 | -141546 |
| 4legacy | 126 | Langford, Chris (1507) | Won 2-1 | +171563 |
| 5legacy | 84 | Price, David (1685) | Lost 1-2 | -161547 |
| 6legacy | 122 | Janovics, Peter (1519) | Won 2-1 | +181565 |
| 7legacy | 76 | May-Krumins, Zintis (1583) | Won 2-0 | +181583 |
| 8legacy | 69 | Chilbert, Colin (1561) | Lost 1-2 | -181565 |
| top | average opponent: 1585record: 5-3 | new rating: 1565 | ||
| Grand Prix Boston 2005 (extended) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 45 | Ortiz, Jason (1500) | Lost 0-2 | -181505 |
| 2extended | 193 | Blain, Michael (1482) | Won 2-1 | +181523 |
| 3extended | 159 | Lin, Albert (1500) | Won 2-0 | +171540 |
| 4extended | 173 | Murray, Adam (1518) | Lost 1-2 | -181522 |
| 5extended | 195 | Opolka, Peter (1466) | Won 2-0 | +171539 |
| 6extended | 174 | Fujita, Osamu (1723) | Lost 1-2 | -151524 |
| top | average opponent: 1531record: 3-3 | new rating: 1524 | ||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 186 | Koenig, Robert (1500) | Won 2-1 | +181518 |
| 2block | 60 | Semeniuk, Albert (1518) | Won 2-1 | +181536 |
| 3block | 98 | Dupiano, Paul (1536) | Won 2-1 | +181554 |
| 4block | 54 | Davis, John (1620) | Won 2-0 | +191573 |
| 5block | 36 | Hoaen, Rich (1878) | Lost 1-2 | -121561 |
| 6block | 34 | Muehlen, Hans (1553) | Lost 0-2 | -191542 |
| 7block | 155 | Holliday, Ryan (1486) | Lost 0-2 | -191523 |
| top | average opponent: 1584record: 4-3 | new rating: 1523 | ||