Landwehr, Aaron
Current rating: 1487
Record: 8-9-2
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 480 | Smith, Drew (1500) | Lost 1-2 | -181447 |
| 2sealed | 414 | Kayton, Robert C (1482) | Won 2-0 | +191466 |
| 3sealed | 206 | La Hay, William (1500) | Won 2-1 | +181484 |
| 4sealed | 375 | Housley, Christopher (1554) | Won 2-1 | +201504 |
| 5sealed | 84 | Rosellini, Jason (1602) | Lost 0-2 | -171487 |
| top | average opponent: 1528record: 3-2 | new rating: 1487 | ||
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 54 | Falk, Coleman (1500) | Lost 1-2 | -181483 |
| 2standard | 349 | Shillam, Todd (1482) | Lost 0-2 | -181465 |
| top | average opponent: 1491record: 0-2 | new rating: 1465 | ||
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 174 | Holiday, Nathan (1500) | Draw 1-1 | 01520 |
| 2block | 167 | Boyd, Tim (1500) | Won 1-0 | +181538 |
| 3block | 105 | Croteau, Luke (1518) | Draw 0-0 | -11537 |
| 4block | 201 | Williams, Erik L (1499) | Lost 1-2 | -181519 |
| 6block | 188 | Hickey, Brenden (1519) | Lost 1-2 | -181501 |
| top | average opponent: 1507record: 1-2-2 | new rating: 1501 | ||
| Grand Prix Oakland 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 81 | Behunin, Jeremy (1463) | Won 2-1 | +171517 |
| 2sealed | 11 | Osborne, James (1599) | Won 2-0 | +201537 |
| 3sealed | 21 | Lam, Jason (1534) | Won 2-0 | +181555 |
| 4sealed | 14 | Dietzel, Bobby (1559) | Lost 1-2 | -181537 |
| 5sealed | 65 | Smalridge, Jason (1534) | Lost 0-2 | -181519 |
| 6sealed | 108 | Hegeman, John (1518) | Won 2-0 | +181537 |
| 7sealed | 62 | Sun, Allen (1622) | Lost 0-2 | -171520 |
| top | average opponent: 1547record: 4-3 | new rating: 1520 | ||