Pfeil, Stuart
Current rating: 1471
Record: 6-8
| Grand Prix Minneapolis 2018 (M19 limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3 | Eichenlaub, John (1483) | Lost 1-2 | -181465 |
| 2sealed | 456 | Yang, Jay (1482) | Won 2-0 | +191484 |
| 3sealed | 343 | Kolos, John (1889) | Lost 0-2 | -111473 |
| 4sealed | 553 | Tran, Mason (1494) | Won 2-1 | +181491 |
| 5sealed | 342 | King, Alex (1391) | Lost 0-2 | -201471 |
| average opponent: 1548record: 2-3 | new rating: 1471 | |||
| Grand Prix Indianapolis 2017 (HOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | Rickabaugh, Ken (1500) | Lost 0-2 | -181482 |
| 2sealed | 414 | Tournear, Nathaniel (1490) | Lost 0-2 | -181464 |
| 3sealed | 531 | Lewandowski, Kevin (1367) | Won 2-0 | +161480 |
| 4sealed | 512 | Venneman, Mike (1452) | Lost 0-2 | -181462 |
| 5sealed | 465 | Stern, John (1462) | Won 2-0 | +181480 |
| 6sealed | 436 | Smith, Andrew (1399) | Won 2-0 | +161496 |
| 7sealed | 311 | Bozarth, Clifford (1450) | Won 2-0 | +181514 |
| 8sealed | 304 | Jones, Josh (1822) | Lost 0-2 | -131501 |
| 9sealed | 275 | Lunt, Brandon (1519) | Lost 0-2 | -181483 |
| average opponent: 1496record: 4-5 | new rating: 1483 | |||