Yamamoto, Michael L
Current rating: 1523
Record: 5-4
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Houghtaling, Matt (1500) | Won 2-0 | +181518 |
| 2sealed | 99 | Leite Araujo, Joao Paulo (1668) | Won 2-0 | +211539 |
| 3sealed | 41 | Christiansen, Nico (1410) | Won 2-1 | +151554 |
| 4sealed | 39 | Prelle, Ryan C (1553) | Won 2-0 | +181572 |
| 5sealed | 40 | Pikula, Chris (1715) | Lost 1-2 | -151557 |
| 6sealed | 126 | Rudyak, Rada (1490) | Lost 0-2 | -191538 |
| 7sealed | 197 | Morgan, Jordan (1524) | Lost 1-2 | -191519 |
| 8sealed | 171 | Chen, Jeremy (1521) | Won 2-1 | +191538 |
| 9sealed | 114 | DeTora, Melissa (1703) | Lost 1-2 | -151523 |
| average opponent: 1565record: 5-4 | new rating: 1523 | |||