Yamaguchi, Brandon
Current rating: 1446
Record: 3-6
| Grand Prix Oakland 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 131 | Capone, Enzo (1500) | Lost 1-2 | -181482 |
| 2extended | 242 | Austria, Alfred (1482) | Lost 1-2 | -181464 |
| 3extended | 312 | Leung, Kevin (1462) | Won 2-1 | +181482 |
| 4extended | 317 | Mercier, Mathew (1479) | Won 2-1 | +181500 |
| 5extended | 219 | Scotton, David (1500) | Lost 0-2 | -181482 |
| 6extended | 273 | Mixon, Eric (1543) | Lost 0-2 | -171465 |
| 7extended | 225 | Ziemba, Brian (1497) | Lost 1-2 | -171448 |
| 8extended | 173 | O'Hara, Michael J (1353) | Won 2-1 | +161464 |
| 9extended | 130 | Redd, Gunner (1462) | Lost 0-2 | -181446 |
| average opponent: 1475record: 3-6 | new rating: 1446 | |||