Schaeffer, Joshua
Current rating: 1479
Record: 7-10-1
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 365 | Allseitz, Brandin (1524) | Won 2-0 | +191487 |
| 2sealed | 230 | Spano, Matthew (1664) | Lost 0-2 | -151472 |
| 3sealed | 403 | Krishnasamy, Kiran (1483) | Won 2-1 | +181490 |
| 4sealed | 220 | Hu, Haibing (1890) | Lost 1-2 | -111479 |
| top | average opponent: 1640record: 2-2 | new rating: 1479 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 453 | Markowicz, Eric (1510) | Won 2-1 | +191472 |
| 2sealed | 349 | Hill, Zac (2020) | Won 2-0 | +271499 |
| 3sealed | 66 | Rodriguez, Camilo (1523) | Draw 1-1 | 01499 |
| 4sealed | 206 | Fleming, Andrew (1649) | Lost 1-2 | -151484 |
| 5sealed | 386 | Johnson, Charles (1601) | Lost 0-2 | -161468 |
| top | average opponent: 1661record: 2-2-1 | new rating: 1468 | ||
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 56 | Steward, Kenneth (1522) | Won 2-1 | +181501 |
| 3legacy | 351 | Curran, Riley (1620) | Lost 1-2 | -161485 |
| 4legacy | 281 | Rackowski, Jonathan (1631) | Lost 1-2 | -151470 |
| 5legacy | 578 | Rothweiler, Zachary (1504) | Lost 0-2 | -171453 |
| top | average opponent: 1569record: 1-3 | new rating: 1453 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 104 | Marchington, Scott (1518) | Won 2-0 | +181518 |
| 2sealed | 137 | Pskowski, Timothy (1511) | Lost 0-2 | -181500 |
| 3sealed | 287 | Stockton, Daniel L (1481) | Won 2-1 | +181518 |
| 4sealed | 189 | Kaplan, Michael (1555) | Lost 1-2 | -171501 |
| 5sealed | 347 | Garrity, Beren (1501) | Lost 0-2 | -181483 |
| top | average opponent: 1513record: 2-3 | new rating: 1483 | ||