Couch, Michael S
Current rating: 1507
Record: 2-2
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 255 | Courtney, Adam (1464) | Won 2-0 | +171517 |
| 2sealed | 141 | Tessler, Johnathan T (1631) | Won 2-1 | +201537 |
| 3sealed | 110 | Berger, Eric (1694) | Lost 1-2 | -151522 |
| 4sealed | 378 | Shears, Brett (1699) | Lost 0-2 | -151507 |
| average opponent: 1622record: 2-2 | new rating: 1507 | |||