Derksen, Caleb
Current rating: 1521
Record: 7-6
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 462 | Clark, Ken (1500) | Lost 1-2 | -181526 |
| 2sealed | 464 | Spivey, Russell B (1482) | Won 2-0 | +171543 |
| 3sealed | 465 | Willis, Nick (1500) | Lost 1-2 | -191524 |
| 4sealed | 555 | Sypal-Kohout, Jonathan (1481) | Won 2-0 | +171541 |
| 5sealed | 291 | Flores, Edgar (1424) | Lost 0-2 | -201521 |
| average opponent: 1477record: 2-3 | new rating: 1521 | |||
| Grand Prix Vancouver 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 6 | Yee, Daniel (1500) | Won 2-0 | +181518 |
| 2extended | 62 | Christensen, Drew (1518) | Lost 1-2 | -181500 |
| 3extended | 120 | Pustilnik, Michael (1720) | Won 2-0 | +221522 |
| 4extended | 99 | Cutcher, Greg M (1519) | Won 2-0 | +181540 |
| 5extended | 52 | Godinez Estrada, Gerardo (1887) | Lost 1-2 | -121528 |
| 6extended | 71 | Beith, Tom (1472) | Won 2-1 | +171545 |
| 7extended | 50 | Hanson, James A (1536) | Won 2-1 | +181563 |
| 8extended | 31 | Ahmad, Camran (1541) | Lost 0-2 | -191544 |
| average opponent: 1587record: 5-3 | new rating: 1544 | |||