Grotjohn, Kenny R
Current rating: 1517
Record: 2-1
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 152 | Oguma, Rory (1500) | Won 2-0 | +181518 |
| 2sealed | 327 | Rodriguez, Jason m (1518) | Won 2-0 | +181536 |
| 3sealed | 42 | Tsao, Alvin (1500) | Lost 0-2 | -191517 |
| average opponent: 1506record: 2-1 | new rating: 1517 | |||