Crownhart, Brian J
Current rating: 1413
| Grand Prix Chicago 2009 (legacy) | starting rating: 1399 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 293 | Navickas, Justin D (1579) | Won 2-1 | +221421 |
| 2legacy | 217 | Jabczynski, Mike J (1500) | Won 2-0 | +191440 |
| 3legacy | 185 | Torrisi, Mike (1552) | Won 2-1 | +201460 |
| 4legacy | 90 | Golliher, Jason (1526) | Lost 0-2 | -171443 |
| 5legacy | 189 | Barbeau, Jeremy (1568) | Draw 1-1 | +21445 |
| 6legacy | 169 | Gouletas, Kevin (1535) | Lost 1-2 | -161429 |
| 7legacy | 259 | Lindler, Zac (1513) | Lost 0-2 | -161413 |
| top | average opponent: 1539record: 3-3-1 | new rating: 1413 | ||
| Grand Prix Columbus 2007 (legacy) | starting rating: 1408 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 198 | Denham, Matthew (1519) | Lost 0-2 | -161392 |
| 2legacy | 367 | Daviduk, Brian (1437) | Lost 0-2 | -181374 |
| 3legacy | 376 | Voight, Bradford (1464) | Won 2-0 | +201394 |
| 4legacy | 357 | Michiels, Tony (1482) | Won 2-1 | +201414 |
| 5legacy | 281 | Williams, Joshua A (1500) | Won 2-0 | +191433 |
| 6legacy | 183 | Barnello, Adam (1476) | Lost 0-2 | -171416 |
| 7legacy | 235 | Elrod, David (1484) | Lost 1-2 | -171399 |
| top | average opponent: 1480record: 3-4 | new rating: 1399 | ||
| Grand Prix Seattle 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 110 | Wojtowycz, Emilian (1500) | Won 2-0 | +181518 |
| 2extended | 90 | Wysong, Richard (1465) | Lost 1-2 | -191499 |
| 3extended | 128 | Scales, Zach (1409) | Lost 1-2 | -201479 |
| 4extended | 158 | Berg Jr., Kevin (1482) | Lost 0-2 | -181461 |
| 5extended | 162 | Carter, Jay (1464) | Lost 1-2 | -171444 |
| 6extended | 149 | Gilbert, Kevin (1446) | Lost 0-2 | -181426 |
| 7extended | 125 | McBride, Mark (1428) | Lost 1-2 | -181408 |
| top | average opponent: 1456record: 1-6 | new rating: 1408 | ||