Herrera, Derek
Current rating: 1467
Record: 5-7
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 9 | Temkin, Johan (1500) | Lost 0-2 | -171448 |
| 2standard | 318 | Barnes, Justin (1483) | Won 2-0 | +191467 |
| 3standard | 379 | Edwards, Jonathan (1394) | Won 2-0 | +161483 |
| 4standard | 303 | Azpurua, Jorge (1488) | Won 2-0 | +181501 |
| 5standard | 164 | Stubblefield, Chad (1538) | Lost 1-2 | -171484 |
| 6standard | 264 | Muir, Joseph (1540) | Lost 1-2 | -171467 |
| average opponent: 1491record: 3-3 | new rating: 1467 | |||
| Grand Prix Phoenix 2014 (BNG standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 431 | Rogers, Tully (1500) | Won 2-1 | +181518 |
| 2standard | 116 | Truswell, Richard (1483) | Lost 0-2 | -191499 |
| 3standard | 529 | Biard, Zekiel (1501) | Lost 1-2 | -181481 |
| 4standard | 584 | Napper, Josh (1598) | Won 2-0 | +211502 |
| 5standard | 399 | Gabaldon, Brandon (1497) | Lost 1-2 | -191483 |
| 6standard | 480 | Greeno, Marcus (1481) | Lost 0-2 | -181465 |
| average opponent: 1510record: 2-4 | new rating: 1465 | |||