Kozack, Brian
Current rating: 1511
| Grand Prix Indianapolis 2016 (modern) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 72 | Mills, Jesse (1607) | Lost 1-2 | -151470 |
| 2modern | 601 | Buchanan, Ed (1471) | Lost 0-2 | -181452 |
| 3modern | 868 | Roth, Bryan (1464) | Won 2-0 | +181470 |
| 4modern | 790 | Brada, Sam (1431) | Lost 1-2 | -191451 |
| 5modern | 853 | Skenandore, Dustin (1467) | Won 2-0 | +181469 |
| 6modern | 772 | Grwinski, Logan (1466) | Won 2-0 | +181487 |
| 7modern | 543 | Coon, Sam (1473) | Won 2-1 | +181505 |
| 8modern | 372 | Adrian, Nathan (1610) | Won 2-0 | +201525 |
| 9modern | 295 | Cleveland, Christopher (1546) | Won 2-0 | +181543 |
| 10modern | 1055 | Dalke, Cody (1678) | Lost 0-2 | -151528 |
| 11modern | 1056 | Caddell, Michael (1587) | Lost 0-2 | -171511 |
| top | average opponent: 1527record: 6-5 | new rating: 1511 | ||
| Grand Prix Chicago 2012 (modern) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 142 | Elwell, Aaron (1538) | Lost 1-2 | -191523 |
| 2modern | 282 | Curtis, James (1450) | Lost 0-2 | -191504 |
| 3modern | 435 | Swift, Ben (1465) | Lost 1-2 | -191485 |
| top | average opponent: 1484record: 0-3 | new rating: 1485 | ||
| Grand Prix Indianapolis 2012 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 2 | Becerra, Patrick (1505) | Won 2-0 | +181518 |
| 2legacy | 153 | Kloster, Kyle A (1527) | Won 2-1 | +181536 |
| 3legacy | 88 | Hutchens, Kyle (1549) | Lost 1-2 | -181518 |
| 4legacy | 266 | Fu, Wen (1518) | Won 2-0 | +181536 |
| 5legacy | 157 | Pigeon, Adam (1505) | Lost 0-2 | -181518 |
| 6legacy | 289 | Akeley, Peter (1547) | Won 2-0 | +181536 |
| 7legacy | 238 | Valenti, Christian (1848) | Lost 1-2 | -121524 |
| 8legacy | 243 | Hipp, Ryan (1502) | Won 2-0 | +181542 |
| top | average opponent: 1563record: 5-3 | new rating: 1542 | ||