Kamihara, Ken
Current rating: 1629
Record: 23-17
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 320 | McCourry, Levi (1500) | Won 2-0 | +161596 |
| 2sealed | 51 | Seylar, Joshua (1572) | Won 2-0 | +181614 |
| 3sealed | 159 | Davis, John (1732) | Lost 1-2 | -161598 |
| 4sealed | 256 | Flatt, Troy (1519) | Won 2-0 | +161614 |
| 5sealed | 219 | Johnson, Erik 445 (1638) | Won 2-0 | +191633 |
| 6sealed | 80 | Francis, Scott (1478) | Won 2-1 | +151648 |
| 7sealed | 91 | Edmund, Arthur (1526) | Lost 1-2 | -201628 |
| 8sealed | 162 | RHINEBARGER, RYAN R (1556) | Won 2-0 | +171645 |
| 9sealed | 69 | Ngo, Kiet (1785) | Lost 0-2 | -161629 |
| top | average opponent: 1590record: 6-3 | new rating: 1629 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 154 | Costa, Frank (1464) | Won 2-1 | +171521 |
| 2extended | 26 | Joffrion, Corey (1574) | Won 2-0 | +191540 |
| 3extended | 15 | Babar, Zee Shan (1597) | Lost 0-2 | -171523 |
| 4extended | 140 | Lambeth, Jason (1583) | Won 2-1 | +191542 |
| 5extended | 106 | Rooks, Michael (1409) | Won 2-0 | +161558 |
| 6extended | 85 | Berni, Roberto (1695) | Lost 1-2 | -161542 |
| 7extended | 110 | Deluna, Joseph (1535) | Won 2-0 | +181560 |
| 8extended | 94 | Tabak, Josh (1543) | Won 2-0 | +181578 |
| 9extended | 37 | Walters, Nick (1608) | Won 2-0 | +181596 |
| 10extended | 80 | Conyers, Melvin (1587) | Won 2-0 | +181614 |
| 11extended | 22 | Hickerson, Jonathan (1553) | Lost 0-2 | -191595 |
| 12extended | 35 | Yurchick, Adam (1775) | Won 2-1 | +211616 |
| 13extended | 46 | Epstein, Zivvy (1581) | Lost 1-2 | -181598 |
| 14extended | 46 | Pease, Nate (1601) | Lost 0-2 | -181580 |
| top | average opponent: 1579record: 9-5 | new rating: 1580 | ||
| Grand Prix Atlanta 2008 (ALA limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 103 | Goldstein, Danny (1500) | Lost 1-2 | -181484 |
| 2sealed | 202 | James, Jim (1483) | Won 2-0 | +181502 |
| 3sealed | 250 | Bennett, Christopher (1500) | Won 2-1 | +181520 |
| 4sealed | 107 | Lafleur, Collin (1606) | Lost 0-2 | -161504 |
| top | average opponent: 1522record: 2-2 | new rating: 1504 | ||
| Grand Prix Charlotte 2005 (extended) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 147 | Bliss, Jeffrey (1500) | Lost 1-2 | -181503 |
| 2extended | 133 | Laake, Michael (1447) | Won 2-0 | +171520 |
| 3extended | 139 | Thomason, Timothy (1533) | Lost 1-2 | -181502 |
| top | average opponent: 1493record: 1-2 | new rating: 1502 | ||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 76 | Bryant, Joseph (1518) | Lost 0-2 | -181481 |
| 3block | 139 | Doshi, Vishvas (1637) | Won 2-1 | +211502 |
| 4block | 137 | Steht, Lee (1628) | Won 2-1 | +201522 |
| 5block | 94 | Jeanette, Jason (1482) | Won 2-1 | +171539 |
| 6block | 34 | Mullins, Will (1536) | Lost 0-2 | -181521 |
| top | average opponent: 1560record: 3-2 | new rating: 1521 | ||
| Grand Prix Atlanta 2003 (8ED standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 67 | Greer, Joseph (1522) | Won 2-0 | +181518 |
| 4standard | 55 | Jensen, William (1910) | Won 2-0 | +251543 |
| 5standard | 14 | Maher, Bob (2047) | Lost 0-2 | -91534 |
| 6standard | 55 | Harrison, Joshua (1574) | Lost 1-2 | -181516 |
| 7standard | 108 | Chatham, Charles (1536) | Lost 1-2 | -171499 |
| top | average opponent: 1718record: 2-3 | new rating: 1499 | ||