Cowsert, Joseph
Current rating: 1487
| Grand Prix Kansas City 2013 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 102 | Points, Kamerin (1500) | Lost 1-2 | -181464 |
| 2modern | 278 | Friend, Isaac (1433) | Won 2-0 | +181482 |
| 3modern | 260 | Dean, Zach (1501) | Won 2-0 | +181500 |
| 4modern | 217 | Guillerm, Benjamin (1756) | Lost 0-2 | -131487 |
| 5modern | 343 | Platter, Joel (1500) | Won 2-1 | +181505 |
| 6modern | 218 | Beaulieu, Sam (1528) | Lost 1-2 | -181487 |
| top | average opponent: 1536record: 3-3 | new rating: 1487 | ||
| Grand Prix Dallas 2007 (extended) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 37 | Law, Adam (1500) | Won 2-1 | +181500 |
| 2extended | 61 | Willis, Brandon (1518) | Draw 1-1 | 01500 |
| 3extended | 134 | Oakes, Connor (1411) | Won 0-0 | +171517 |
| 4extended | 100 | Nguyen, Dan V (1535) | Draw 1-1 | 01517 |
| 5extended | 156 | Wellington, Larry (1516) | Lost 1-2 | -181499 |
| 6extended | 190 | Fish, Corey (1538) | Lost 1-2 | -171482 |
| top | average opponent: 1503record: 2-2-2 | new rating: 1482 | ||
| Grand Prix St. Louis 2006 (CSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 84 | Heihy, Justin (1500) | Won 2-1 | +181518 |
| 2sealed | 99 | Pratser, Matthew (1500) | Won 2-1 | +181536 |
| 3sealed | 53 | Tobey, Aaron (1541) | Lost 1-2 | -181518 |
| 4sealed | 130 | Bencik, Jason (1518) | Lost 1-2 | -181500 |
| 5sealed | 145 | Hogue, Brandon S (1503) | Lost 0-2 | -181482 |
| top | average opponent: 1512record: 2-3 | new rating: 1482 | ||