Shaferly, Joshua E
Current rating: 1403
| Grand Prix Pittsburgh 2011 (M12 standard) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 105 | Reppert, Mason L (1535) | Lost 0-2 | -161415 |
| 4standard | 372 | Paolucci, Angelo (1516) | Won 2-0 | +201435 |
| 5standard | 150 | Kopf, Andrew (1538) | Lost 0-2 | -161419 |
| 6standard | 312 | Muka, Tyler (1521) | Lost 0-2 | -161403 |
| top | average opponent: 1528record: 1-3 | new rating: 1403 | ||
| Grand Prix Columbus 2007 (legacy) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 59 | Till, Benjamin (1535) | Lost 1-2 | -161448 |
| 2legacy | 327 | Taylor, Domynic (1482) | Won 2-0 | +181466 |
| 3legacy | 311 | Ekstrand, Matthew B (1467) | Lost 1-2 | -181448 |
| 4legacy | 365 | Valley, Justin (1431) | Lost 0-2 | -181430 |
| 5legacy | 344 | Hunsicker, Greg (1463) | Won 2-0 | +191449 |
| 6legacy | 292 | Loosli, Andrew (1481) | Lost 1-2 | -181431 |
| top | average opponent: 1477record: 2-4 | new rating: 1431 | ||
| Grand Prix Columbus 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 137 | Bulnes, Armando (1526) | Lost 0-2 | -181482 |
| 2sealed | 338 | Curry, Nick (1482) | Lost 1-2 | -181464 |
| top | average opponent: 1504record: 0-2 | new rating: 1464 | ||