Biffel, Billy
Current rating: 1486
Record: 7-8
| Grand Prix Dallas-Fort Worth 2016 (modern) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 437 | Wood, Brett (1392) | Won 2-0 | +161482 |
| 2modern | 211 | Thorlakson, Neil (1466) | Lost 1-2 | -181464 |
| 3modern | 466 | Fitzpatrick, Charles (1549) | Lost 1-2 | -171447 |
| 4modern | 738 | Draper, Jesse (1480) | Won 2-1 | +191466 |
| 5modern | 496 | Stahl, Richard (1535) | Won 2-1 | +191485 |
| 6modern | 508 | Romero, Kelly (1522) | Won 2-0 | +191504 |
| 7modern | 311 | Barreto, Carlos (1468) | Lost 0-2 | -191485 |
| 8modern | 316 | Nguyen, Vanessa (1504) | Won 2-0 | +191504 |
| 9modern | 350 | Meegan, Mitchell (1542) | Lost 1-2 | -181486 |
| average opponent: 1495record: 5-4 | new rating: 1486 | |||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 121 | Clarke, James E (1513) | Won 2-1 | +181518 |
| 2standard | 11 | Sohn, Michael (1555) | Won 2-1 | +191537 |
| 3standard | 48 | Partlow, Drew (1535) | Lost 1-2 | -181519 |
| 4standard | 266 | Zandi, Jeff (1562) | Lost 1-2 | -171502 |
| 5standard | 374 | Tuttle, Brad (1499) | Lost 1-2 | -181484 |
| 6standard | 369 | Johnson, George T (1481) | Lost 0-2 | -181466 |
| average opponent: 1524record: 2-4 | new rating: 1466 | |||