Griffus, David
Current rating: 1431
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 215 | Gardner, Austin (1500) | Lost 0-2 | -181467 |
| 3standard | 340 | Quiroga, Leonardo (1497) | Lost 1-2 | -181449 |
| 4standard | 379 | Murawski, Ian (1432) | Lost 0-2 | -181431 |
| top | average opponent: 1476record: 0-3 | new rating: 1431 | ||
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 147 | Swift, Ben (1423) | Won 2-1 | +161519 |
| 3standard | 130 | Darnall, Matthew (1536) | Lost 0-2 | -171502 |
| 4standard | 229 | Brock, Jerry (1519) | Lost 0-2 | -181484 |
| 5standard | 235 | Hirst, Daniel (1500) | Won 0-0 | +181502 |
| 6standard | 207 | Fitzgerald, Derek (1520) | Lost 0-2 | -171485 |
| top | average opponent: 1500record: 2-3 | new rating: 1485 | ||
| Grand Prix Phoenix 2014 (BNG standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 317 | Tan, Stephen (1500) | Lost 0-2 | -181482 |
| 2standard | 545 | Kudlinski, Jake (1482) | Won 2-0 | +181500 |
| 3standard | 304 | Reyes, Jeremy (1499) | Won 2-1 | +181518 |
| 4standard | 337 | Valle, Amadiz (1653) | Won 2-1 | +201538 |
| 5standard | 220 | Kuzmin, Nick (1539) | Lost 0-2 | -181520 |
| 6standard | 377 | Grothe, Michael (1541) | Lost 0-2 | -171503 |
| top | average opponent: 1536record: 3-3 | new rating: 1503 | ||