Reiff, William
Current rating: 1595
Record: 19-16
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 11 | Downs, Patrick (1518) | Won 2-0 | +171621 |
| 3sealed | 94 | Neal, Stephen (1513) | Lost 0-2 | -201601 |
| 4sealed | 279 | Taylor, George N (1488) | Won 2-0 | +161617 |
| 5sealed | 203 | Nelson, Benjamin D (1537) | Lost 1-2 | -201597 |
| 6sealed | 175 | Yatsenko, Alex (1655) | Won 2-0 | +191616 |
| 7sealed | 106 | Carlson, Mark 2 (1435) | Lost 0-2 | -211595 |
| top | average opponent: 1524record: 3-3 | new rating: 1595 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 273 | Lewandoski, Kevin (1459) | Won 2-0 | +171524 |
| 3sealed | 154 | Chitiz, Alon (1536) | Won 2-1 | +191543 |
| 4sealed | 58 | Law, Alvin (1500) | Won 2-1 | +171560 |
| 5sealed | 34 | Irvine, David (1730) | Lost 0-2 | -151545 |
| 6sealed | 49 | Ma, Will (1522) | Won 2-1 | +171562 |
| 7sealed | 23 | Seaver, Ryan (1635) | Won 2-0 | +201582 |
| 8sealed | 29 | Turtenwald, Owen (1806) | Lost 1-2 | -141568 |
| 9sealed | 45 | Scott-Vargas, Luis (1970) | Won 2-1 | +251593 |
| 10draft | 5 | John, Alexander (1618) | Won 2-0 | +181611 |
| 11draft | 25 | Fortier, Remi (1853) | Lost 0-2 | -131598 |
| 12draft | 30 | Turtenwald, Owen (1797) | Lost 0-2 | -151583 |
| 13draft | 59 | Sherman, Kevin (1584) | Lost 0-2 | -181565 |
| 14draft | 36 | Dittert, Jon R (1556) | Won 2-1 | +181583 |
| 15draft | 2 | Martell, Tom (1755) | Won 2-0 | +211604 |
| top | average opponent: 1666record: 9-5 | new rating: 1604 | ||
| Grand Prix St. Louis 2006 (CSP limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 56 | Duke, Adame (1536) | Won 2-1 | +191517 |
| 5sealed | 3 | Sharratt, Kevin (1505) | Lost 1-2 | -181499 |
| 6sealed | 55 | Marquis, Dustin (1679) | Lost 0-1 | -151484 |
| 7sealed | 48 | Augustine, Michael (1536) | Won 2-0 | +191503 |
| 8sealed | 38 | Lo, Kevin S (1516) | Won 2-0 | +181521 |
| 9draft | 22 | Valenti, Christian (1536) | Won 2-0 | +181539 |
| 10draft | 17 | Sanchez, Kyle (1738) | Lost 0-2 | -141525 |
| 11draft | 24 | Hoaen, Rich (1936) | Lost 0-2 | -111514 |
| 12draft | 17 | Fiorillo, John (1930) | Lost 0-2 | -111503 |
| 13draft | 17 | Jacob, Michael (1684) | Lost 0-0 | -151488 |
| 14draft | 15 | Tobey, Aaron (1534) | Won 2-0 | +191507 |
| top | average opponent: 1648record: 5-6 | new rating: 1507 | ||
| Grand Prix Minneapolis 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 80 | Tomechko, Scott (1463) | Won 2-1 | +171517 |
| 2block | 20 | Kuehl, Christopher (1493) | Lost 0-2 | -181499 |
| 3block | 123 | Johnson, Jack (1500) | Won 2-1 | +181517 |
| 4block | 106 | Sutton, Sean (1476) | Lost 1-2 | -191498 |
| top | average opponent: 1483record: 2-2 | new rating: 1498 | ||