Pfeifer, William
Current rating: 1444
Record: 1-4
| Grand Prix San Diego 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 48 | Scales, Zach (1583) | Lost 1-2 | -161484 |
| 2modern | 229 | Brownell, Kevin (1393) | Lost 1-2 | -201464 |
| 3modern | 295 | Phan, Corey T (1378) | Lost 0-2 | -201444 |
| 4modern | 350 | Paul, Jason (1434) | Won 2-1 | +181462 |
| 5modern | 317 | Capalongan, Edward (1470) | Lost 0-2 | -181444 |
| average opponent: 1452record: 1-4 | new rating: 1444 | |||