Castellon, Michael A
Current rating: 1594
Record: 19-16-1
| Grand Prix Toronto 2012 (modern) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 83 | Cerino, Matthew (1554) | Won 2-0 | +181579 |
| 3modern | 62 | Gibson, Kevin (1491) | Won 2-1 | +171596 |
| 4modern | 129 | Edel, Willy (2051) | Lost 1-2 | -101586 |
| 5modern | 162 | Ellsworth, Owen (1517) | Won 2-1 | +161602 |
| 6modern | 117 | Lusted, Mark (1404) | Won 2-0 | +151617 |
| 7modern | 71 | Stewart, Shawn (1447) | Lost 0-2 | -211596 |
| 8modern | 163 | Farkavec, Andrian (1585) | Won 2-1 | +171613 |
| 9modern | 112 | Zeman, Tyson (1559) | Lost 1-2 | -191594 |
| top | average opponent: 1576record: 5-3 | new rating: 1594 | ||
| Grand Prix Providence 2011 (legacy) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 4legacy | 444 | Monroe, Chris J (1521) | Won 2-0 | +191482 |
| 5legacy | 430 | Darran, Jeff (1549) | Won 2-0 | +191501 |
| 6legacy | 404 | Russell, Justin (1607) | Won 2-0 | +201521 |
| 7legacy | 407 | Pratt, Taylor (1560) | Won 2-0 | +191540 |
| 8legacy | 402 | Duke, Reid (1724) | Lost 0-2 | -151525 |
| 9legacy | 410 | Rynkiewicz, James (1681) | Lost 0-2 | -151510 |
| 10legacy | 63 | Caffrey, Michael (1544) | Lost 0-2 | -181492 |
| 11legacy | 63 | Marshall, Bob (1584) | Won 2-0 | +201512 |
| 12legacy | 57 | Gatza, John (1535) | Won 2-0 | +181530 |
| 13legacy | 48 | Miller, Kyle (1683) | Won 2-1 | +211551 |
| 14legacy | 17 | Meier, Dave (1746) | Won 2-0 | +221573 |
| 15legacy | 12 | Martell, Tom (1967) | Lost 0-2 | -121561 |
| top | average opponent: 1642record: 8-4 | new rating: 1561 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 506 | Yue, David A (1500) | Won 2-1 | +191446 |
| 2sealed | 451 | Park, No-yong (1518) | Won 2-0 | +201466 |
| 3sealed | 364 | Suarez, Andres (1816) | Lost 0-2 | -121454 |
| 4sealed | 522 | Morton, Daniel (1484) | Won 2-1 | +181472 |
| 5sealed | 404 | Izsak, Yoel (1780) | Lost 0-2 | -121460 |
| 6sealed | 418 | Wilson, Karen (1522) | Won 2-0 | +191479 |
| 7sealed | 436 | Perez Jr., Raymond (1536) | Lost 0-2 | -171462 |
| 8sealed | 415 | Gauthier, Alain (1500) | Draw 1-1 | +11463 |
| top | average opponent: 1582record: 4-3-1 | new rating: 1463 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 470 | Shreve, Noah (1500) | Lost 0-2 | -181482 |
| 2legacy | 652 | Jupiter, Jermol (1489) | Lost 1-2 | -181464 |
| 3legacy | 682 | Jagasia, Ravi (1466) | Won 2-1 | +181482 |
| 4legacy | 628 | Bellinger, Scottie (1447) | Lost 1-2 | -181464 |
| 5legacy | 650 | Kunze, David (1464) | Lost 1-2 | -181446 |
| 6legacy | 622 | Bauer, Michael (1412) | Won 2-1 | +171463 |
| 7legacy | 563 | Buckowing, Matt (1465) | Lost 1-2 | -181445 |
| 8legacy | 527 | Howell, Marcus (1446) | Lost 0-2 | -181427 |
| top | average opponent: 1461record: 2-6 | new rating: 1427 | ||