Sylvester, Joshua
Current rating: 1431
| Grand Prix Dallas-Fort Worth 2013 (THS standard) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 290 | Okada, Luke (1516) | Lost 0-2 | -171467 |
| 3standard | 261 | Wallace, Andrea (1453) | Lost 0-2 | -181449 |
| 4standard | 408 | Scott, Kendall (1481) | Lost 0-2 | -181431 |
| top | average opponent: 1483record: 0-3 | new rating: 1431 | ||
| Grand Prix Oklahoma City 2013 (THS limited) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 329 | Taylor, Davin (1500) | Won 2-1 | +191468 |
| 2sealed | 266 | Waner, Chris (1518) | Won 2-0 | +191487 |
| 3sealed | 263 | Dietrich, Thomas (1455) | Won 2-0 | +171504 |
| 4sealed | 133 | Manfield, Seth (2034) | Lost 1-2 | -91495 |
| 5sealed | 278 | Shipp, Mike (1534) | Won 2-0 | +191514 |
| 6sealed | 231 | Golliher, Jason (1785) | Lost 0-2 | -141500 |
| 7sealed | 284 | Marschall, Philip (1609) | Lost 0-2 | -161484 |
| top | average opponent: 1633record: 4-3 | new rating: 1484 | ||
| Grand Prix Denver 2011 (MBS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 518 | Schneider, Eli (1500) | Lost 0-2 | -181482 |
| 2sealed | 524 | Heiss, Nathan (1655) | Lost 0-2 | -151467 |
| 3sealed | 562 | Green, David (1444) | Lost 0-2 | -181449 |
| top | average opponent: 1533record: 0-3 | new rating: 1449 | ||