Tyer, Brandon
Current rating: 1502
Record: 5-5
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 8 | Thomson, Ryan (1500) | Won 2-0 | +181520 |
| 2standard | 164 | Heard, Jaron (1518) | Won 2-1 | +181538 |
| 3standard | 140 | Bikbov, Sergey c (1537) | Lost 1-2 | -181520 |
| 4standard | 355 | Wilson, Andy (1518) | Lost 1-2 | -181502 |
| average opponent: 1518record: 2-2 | new rating: 1502 | |||
| Grand Prix Los Angeles 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 126 | Kronenberg, Art N (1500) | Lost 1-2 | -181482 |
| 2extended | 237 | Bartmus, Matthew R (1482) | Won 2-1 | +181500 |
| 3extended | 284 | Petersen, Nick d (1467) | Won 2-0 | +171517 |
| 4extended | 143 | Smith, Zack M (1648) | Won 2-1 | +211538 |
| 5extended | 167 | Krug, Andrew (1549) | Lost 1-2 | -181520 |
| 6extended | 140 | Yu, Curtis (1517) | Lost 1-2 | -181502 |
| average opponent: 1527record: 3-3 | new rating: 1502 | |||