Hamerski, Clayton
Current rating: 1447
Record: 3-6-1
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 143 | Osyda, Eric (1537) | Won 2-0 | +191500 |
| 2sealed | 202 | Womble, Ed (1497) | Lost 1-2 | -181482 |
| 3sealed | 423 | Johnson, Jimmie (1500) | Lost 1-2 | -181464 |
| 4sealed | 486 | Golden, Johnny (1527) | Lost 1-2 | -171447 |
| average opponent: 1515record: 1-3 | new rating: 1447 | |||
| Grand Prix Charleston 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 80 | Sweeny, Cody (1474) | Lost 0-0 | -181482 |
| 2standard | 229 | Wetzel, Lance (1484) | Won 2-1 | +181500 |
| 3standard | 204 | Wolf, Logan (1485) | Lost 0-2 | -191481 |
| 4standard | 275 | Riddick, Jared (1464) | Won 2-0 | +181499 |
| 5standard | 168 | Underwood, Alexander (1504) | Lost 0-2 | -181481 |
| 6standard | 217 | Johnson, Brandon (1467) | Draw 1-1 | 01481 |
| average opponent: 1480record: 2-3-1 | new rating: 1481 | |||