Whiffen, Stephen
Current rating: 1434
Record: 5-10
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1437 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 639 | Wagner, Travis (1592) | Won 2-1 | +211458 |
| 4modern | 23 | Cairns, Jordan (1680) | Lost 1-2 | -141444 |
| 5modern | 292 | Ulanov, Denis (1727) | Lost 0-2 | -131431 |
| 6modern | 916 | Deichler, Philip (1499) | Lost 1-2 | -171414 |
| 7modern | 911 | Beck, Brian (1500) | Won 2-0 | +201434 |
| top | average opponent: 1599record: 2-3 | new rating: 1434 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 208 | Schmit, Mark (1583) | Lost 1-2 | -161471 |
| 4sealed | 487 | Null, Christopher (1468) | Lost 0-2 | -181453 |
| 5sealed | 548 | Edelman, Charles (1609) | Lost 0-2 | -161437 |
| top | average opponent: 1554record: 0-3 | new rating: 1437 | ||
| Grand Prix Las Vegas 2017 (legacy) (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 263 | Switzer, Paul (1502) | Lost 0-2 | -181482 |
| 4legacy | 797 | Kinney, Ryan (1569) | Lost 1-2 | -161466 |
| 5legacy | 689 | Tuttle, Brad (1497) | Won 2-0 | +181484 |
| 6legacy | 580 | Accristo, Nicholas (1417) | Won 2-0 | +171501 |
| 7legacy | 531 | Blackwell, Keith (1693) | Won 2-1 | +211522 |
| 8legacy | 196 | Fishman, Grant (1486) | Lost 1-2 | -181504 |
| 9legacy | 359 | Tovar, Ricky (1565) | Lost 1-2 | -171487 |
| top | average opponent: 1533record: 3-4 | new rating: 1487 | ||