Herrera, David
Current rating: 1503
Record: 8-8
| Grand Prix Charlotte 2016 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 404 | Gabaree, Kevin (1529) | Lost 1-2 | -171467 |
| 2modern | 765 | Johnson, Bailey (1481) | Won 2-0 | +181485 |
| 3modern | 652 | Strickland, Jeffrey (1503) | Won 2-1 | +181503 |
| 4modern | 1114 | Ortega, Thomas A (1428) | Won 2-0 | +171520 |
| 5modern | 365 | York, Jared (1536) | Lost 1-2 | -181502 |
| 6modern | 758 | Rick, David (1530) | Lost 1-2 | -171485 |
| 7modern | 588 | Abdallah, Joseph (1480) | Won 2-1 | +181503 |
| 8modern | 417 | Banh, David (1516) | Lost 1-2 | -181485 |
| 9modern | 478 | Hedayati, Riaz (1507) | Won 2-1 | +181503 |
| average opponent: 1501record: 5-4 | new rating: 1503 | |||
| Grand Prix Barcelona 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 584 | Vileta Gimeno, Dani (1500) | Won 2-1 | +181518 |
| 2standard | 577 | Villa, Ugo (1500) | Lost 0-2 | -181500 |
| 3standard | 581 | Rodas, Tomas (1438) | Won 2-0 | +171517 |
| 4standard | 598 | Viudez Martin, Tono (1734) | Won 2-1 | +211538 |
| 5standard | 539 | Prodanov, Dimitar (1537) | Lost 1-2 | -181520 |
| 6standard | 585 | Rey, Stephan (1500) | Lost 1-2 | -181502 |
| 7standard | 585 | Chamorro, Adrian (1503) | Lost 0-2 | -181484 |
| average opponent: 1530record: 3-4 | new rating: 1484 | |||