Groenig, Gahan
Current rating: 1465
Record: 2-4-1
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 276 | Adams, Kelly (1500) | Draw 1-1 | 01500 |
| 2standard | 280 | Johnson, Casey (1500) | Lost 1-2 | -181482 |
| 3standard | 424 | Hernandez, Daniel (1499) | Lost 1-2 | -181464 |
| 4standard | 512 | MacInnis, Darren (1464) | Won 2-0 | +181482 |
| 5standard | 428 | Broughton, Grayson (1481) | Won 2-1 | +181500 |
| 6standard | 342 | McClellan, Bob (1516) | Lost 0-2 | -171483 |
| 7standard | 315 | Tilley, Jay (1532) | Lost 1-2 | -181465 |
| average opponent: 1499record: 2-4-1 | new rating: 1465 | |||