Cowan, Chris H
Current rating: 1511
| Grand Prix Portland 2013 (modern) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 250 | Garner, Robert (1516) | Won 2-1 | +181525 |
| 2modern | 93 | Taylor, Chad (1518) | Lost 0-2 | -181507 |
| 3modern | 257 | Chandler, Kyle (1500) | Won 2-0 | +171524 |
| 4modern | 236 | Harris, Taylor (1520) | Won 2-0 | +181542 |
| 5modern | 90 | Corzine, Tim E (1619) | Lost 0-2 | -161526 |
| 6modern | 219 | Khare, Anand (1683) | Lost 0-2 | -151511 |
| top | average opponent: 1559record: 3-3 | new rating: 1511 | ||
| Grand Prix Vancouver 2012 (AVR limited) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 171 | Martin, Aaron [CAN] (1500) | Won 2-1 | +181554 |
| 3sealed | 116 | Calver, Byron (1536) | Lost 1-2 | -191535 |
| 4sealed | 243 | Paquette, Aeo (1979) | Lost 0-2 | -101525 |
| 5sealed | 257 | Darlington, Kenny (1501) | Lost 0-2 | -181507 |
| top | average opponent: 1629record: 1-3 | new rating: 1507 | ||
| Grand Prix Seattle-Tacoma 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 225 | Kopel, Kris (1500) | Won 2-1 | +181518 |
| 2sealed | 258 | Chandler, Andrew (1500) | Lost 1-2 | -181500 |
| 3sealed | 305 | Brokenshire, Emelee (1502) | Lost 0-2 | -181482 |
| 4sealed | 450 | Underwood, Jeff E (1414) | Won 2-1 | +161498 |
| 5sealed | 315 | Stanford, Lucas A (1499) | Won 2-0 | +181516 |
| 6sealed | 239 | BALDWIN, JESSE (1517) | Won 2-1 | +181534 |
| 7sealed | 40 | Jacobson, Mary (1639) | Lost 0-2 | -161518 |
| 8sealed | 201 | Schwartz, Amanda (1521) | Won 2-0 | +181536 |
| top | average opponent: 1511record: 5-3 | new rating: 1536 | ||