Pennock, Christopher C
Current rating: 1639
| Grand Prix Chicago 2009 (legacy) | starting rating: 1622 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 158 | Jacobson, Josh (1629) | Won 2-0 | +181640 |
| 3legacy | 10 | Kunz, Erich (1581) | Won 2-1 | +171657 |
| 4legacy | 31 | Lewis, Joshua A (1447) | Lost 0-2 | -221635 |
| 5legacy | 164 | Van Lunen, Jacob (1609) | Won 2-0 | +171652 |
| 6legacy | 134 | DeWood, Dale (1411) | Won 2-0 | +141666 |
| 7legacy | 21 | Kelly, John L (1556) | Won 2-1 | +161682 |
| 8legacy | 15 | Smith, Harris (1635) | Lost 0-2 | -191663 |
| 9legacy | 49 | Tsao, Dennis (1674) | Won 2-1 | +181681 |
| 10legacy | 52 | Hames, Steve (1576) | Lost 1-2 | -191662 |
| 11legacy | 66 | Magby, Mike (1572) | Lost 1-2 | -201642 |
| 12legacy | 61 | Fisher, Bryan (1593) | Won 2-0 | +171659 |
| 13legacy | 57 | Kolodziej, Matthew (1564) | Lost 0-2 | -201639 |
| top | average opponent: 1571record: 7-5 | new rating: 1639 | ||
| Grand Prix Kansas City 2008 (ALA limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 150 | Hereford, Patrick (1558) | Won 2-1 | +181570 |
| 3sealed | 62 | Blount, Eric A (1571) | Won 2-0 | +181588 |
| 4sealed | 75 | Beltz, James (1771) | Lost 0-2 | -151573 |
| 5sealed | 125 | Baker, Jeff (1596) | Won 2-0 | +181591 |
| 6sealed | 62 | Norwood, Jacob W (1555) | Lost 0-2 | -181573 |
| 7sealed | 122 | Bodenbach, Ken (1466) | Won 2-0 | +161589 |
| 8sealed | 87 | Zbierski, Brandon F (1512) | Won 2-1 | +161605 |
| 9sealed | 29 | Bustos Jr., Eduardo (1506) | Won 2-1 | +171622 |
| top | average opponent: 1567record: 6-2 | new rating: 1622 | ||
| Grand Prix Columbus 2007 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 54 | Morford, Josh M (1500) | Won 2-0 | +181518 |
| 2legacy | 142 | Race, Allan (1428) | Won 2-1 | +161534 |
| 3legacy | 62 | Wienburg, Ben (1501) | Lost 1-2 | -181516 |
| 4legacy | 171 | Boomer, Chris (1517) | Won 2-1 | +181534 |
| 5legacy | 115 | Mong, Derek (1539) | Won 2-0 | +181552 |
| 6legacy | 39 | Angel, Ben (1539) | Lost 1-2 | -181534 |
| 7legacy | 132 | Lynch, John (1496) | Won 2-1 | +171551 |
| 8legacy | 72 | Duke, Ian (1575) | Won 2-0 | +181569 |
| 9legacy | 63 | Akeley, Peter (1576) | Lost 1-2 | -171552 |
| top | average opponent: 1519record: 6-3 | new rating: 1552 | ||