Dietz, Ken
Current rating: 1442
| Grand Prix Salt Lake City 2012 (DKA standard) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 307 | Demoss, Charlie E (1464) | Lost 0-2 | -181459 |
| 2standard | 427 | Morger, Christopher (1465) | Lost 0-2 | -181441 |
| 3standard | 494 | Orton, Tyson (1464) | Won 2-1 | +191460 |
| 4standard | 479 | Garnica, Nathan (1482) | Lost 0-2 | -181442 |
| top | average opponent: 1469record: 1-3 | new rating: 1442 | ||
| Grand Prix Seattle 2005 (extended) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 21 | Laughlin, Steve (1554) | Won 2-1 | +191484 |
| 5extended | 10 | Tamblyn, Mitchell (1705) | Lost 0-2 | -141470 |
| 6extended | 41 | Strong, Adam (1534) | Won 2-0 | +191489 |
| 7extended | 19 | Weil, Noah (1807) | Draw 1-1 | +61495 |
| 8extended | 25 | Toratani, Charles (1517) | Lost 0-2 | -181477 |
| top | average opponent: 1623record: 2-2-1 | new rating: 1477 | ||
| Grand Prix Las Vegas 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 76 | Huang, Jason (1564) | Lost 1-2 | -171483 |
| 2extended | 117 | Beacham, Steve (1503) | Lost 1-2 | -171466 |
| 3extended | 166 | Jarman, Brad (1395) | Won 2-1 | +161482 |
| 4extended | 192 | Gorman, Ray (1481) | Lost 1-2 | -181464 |
| 5extended | 175 | Burdge, Karin (1464) | Won 2-0 | +181482 |
| 6extended | 134 | Choi, Won Suk (1483) | Draw 1-1 | 01482 |
| 7extended | 113 | Puzon, Greg (1497) | Lost 0-2 | -171465 |
| top | average opponent: 1484record: 2-4-1 | new rating: 1465 | ||