Herrera, Brian
Current rating: 1469
| Grand Prix Los Angeles 2019 (modern) | starting rating: 1476 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 259 | Dracoulis, Garth (1783) | Lost 0-2 | -131463 |
| 2modern | 575 | Gibbons, Jonas (1484) | Won 2-0 | +191482 |
| 3modern | 509 | Kennedy, Tyler (1508) | Lost 0-2 | -181464 |
| 4modern | 610 | Lassise, Dylan (1397) | Won 2-0 | +171481 |
| 5modern | 466 | Festini, Mark (1832) | Lost 0-2 | -121469 |
| top | average opponent: 1601record: 2-3 | new rating: 1469 | ||
| Grand Prix Oakland 2019 (modern) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 134 | Sitrin, Alex (1500) | Lost 0-2 | -161410 |
| 2modern | 300 | Schlumpf, Michael (1389) | Won 2-0 | +171427 |
| 3modern | 315 | Kyaw, Seaver (1516) | Won 2-0 | +201447 |
| 4modern | 207 | Baker, Robert (1574) | Won 2-0 | +201467 |
| 5modern | 123 | Cua, Paolo (1660) | Lost 1-2 | -141453 |
| 6modern | 218 | Li, Charley (1550) | Lost 0-2 | -171436 |
| 7modern | 270 | Charkowicz, Robert (1498) | Won 2-0 | +201456 |
| 8modern | 207 | Choi, Michael (1588) | Won 2-1 | +201476 |
| top | average opponent: 1534record: 5-3 | new rating: 1476 | ||
| Grand Prix Barcelona 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 622 | Chamorro, Adrian (1557) | Lost 0-2 | -171483 |
| 2standard | 739 | Haro Sanchez, Eros (1483) | Lost 1-2 | -181465 |
| 3standard | 725 | Gil Munoz, Javier J (1465) | Draw 1-1 | 01465 |
| 4standard | 761 | Thorvaldsen, Kine (1433) | Lost 0-2 | -191446 |
| 5standard | 741 | Varela Rivas, Javier (1364) | Lost 0-2 | -191427 |
| 6standard | 712 | Martinez, Jose [ESP] (1429) | Won 2-1 | +181445 |
| 7standard | 673 | Gil, Carlos Andres (1410) | Lost 0-2 | -191426 |
| top | average opponent: 1449record: 1-5-1 | new rating: 1426 | ||