Castonguay, Christopher
Current rating: 1640
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1589 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 191 | Oldaker, Matt (1607) | Won 2-1 | +181607 |
| 3sealed | 208 | Ronald R., (1518) | Won 2-0 | +171624 |
| 4sealed | 159 | Beaupit, Ryan (1483) | Won 2-1 | +151639 |
| 5sealed | 97 | Glantzman, Joshua (1752) | Draw 1-1 | +21641 |
| 6sealed | 53 | Lewis, Aaron (1888) | Lost 1-2 | -141627 |
| 7sealed | 142 | Nick B., (1537) | Won 2-0 | +171644 |
| 8sealed | 84 | Campbell, Eric (1541) | Lost 1-2 | -201624 |
| 9sealed | 162 | Allen, Shane (1538) | Won 2-1 | +161640 |
| top | average opponent: 1608record: 5-2-1 | new rating: 1640 | ||
| Grand Prix Quebec City 2013 (GTC standard) | starting rating: 1579 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 158 | Rabethge, Derrick (1518) | Lost 0-2 | -191560 |
| 3standard | 255 | Legendre, Randy A (1501) | Won 2-0 | +171577 |
| 4standard | 248 | Falardeau, Cedric (1519) | Lost 1-2 | -191558 |
| 5standard | 237 | Giguere, Eric (1448) | Won 2-1 | +161574 |
| 6standard | 214 | Kostas, Steven (1518) | Lost 1-2 | -191555 |
| 7standard | 237 | Veau, Damien (1414) | Draw 1-1 | -21553 |
| 8standard | 205 | Jacques, Francois (1507) | Won 2-0 | +171570 |
| 9standard | 163 | Biron, Xavier (1624) | Won 2-0 | +191589 |
| top | average opponent: 1506record: 4-3-1 | new rating: 1589 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 793 | Coffman, Robert (1527) | Draw 0-0 | 01500 |
| 2sealed | 748 | Wenokor, Gregory (1515) | Won 2-0 | +191519 |
| 3sealed | 669 | Speichert, Chris (1482) | Won 2-0 | +171536 |
| 4sealed | 627 | Tran, Chi K (1534) | Won 2-0 | +181554 |
| 5sealed | 563 | Aden, Eli (1750) | Won 2-1 | +221576 |
| 6sealed | 532 | Beverley, Robert (1692) | Lost 1-2 | -161560 |
| 7sealed | 583 | Johnson, Jon (1476) | Lost 0-2 | -201540 |
| 8sealed | 643 | Pustilnik, Michael (1715) | Won 2-1 | +211561 |
| 9sealed | 595 | Robert, Francis (1570) | Won 2-0 | +181579 |
| top | average opponent: 1584record: 6-2-1 | new rating: 1579 | ||