Kozmor, Matthew
Current rating: 1343
Record: 3-14
| Grand Prix Pittsburgh 2017 (AER standard) | starting rating: 1385 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 52 | Newman, D.J. (1498) | Won 2-1 | +201405 |
| 2standard | 15 | Spencer, Dale (1413) | Lost 0-2 | -181387 |
| 3standard | 368 | Swanson, Kevin (1534) | Lost 0-2 | -151372 |
| 4standard | 508 | Patnik, Michael (1768) | Lost 1-2 | -121360 |
| 5standard | 612 | Baker, Tim (1371) | Lost 0-2 | -171343 |
| top | average opponent: 1517record: 1-4 | new rating: 1343 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 106 | McDonald, Mark (1624) | Lost 1-2 | -151433 |
| 4modern | 188 | Naze, Marcin (1518) | Lost 0-2 | -171416 |
| 5modern | 267 | Andrew, Ronald (1484) | Lost 1-2 | -161400 |
| 6modern | 368 | O'Brien, Matt (1571) | Lost 0-2 | -151385 |
| top | average opponent: 1549record: 0-4 | new rating: 1385 | ||
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1457 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 159 | Brazier, Zack j (1518) | Lost 1-2 | -171440 |
| 3standard | 315 | Smith, Andrew (1559) | Won 2-0 | +211461 |
| 4standard | 268 | Mack, Shaun (1640) | Lost 1-2 | -151446 |
| 5standard | 439 | Morris, Malik (1493) | Lost 1-2 | -171429 |
| 6standard | 471 | Hardin, Michael (1482) | Won 2-0 | +191448 |
| top | average opponent: 1538record: 2-3 | new rating: 1448 | ||
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 197 | Jacob, Michael (1882) | Lost 0-0 | -111489 |
| 3modern | 439 | Tinney, Bradley (1743) | Lost 1-2 | -141475 |
| 4modern | 639 | Cronenwett, Joel (1482) | Lost 0-2 | -181457 |
| top | average opponent: 1702record: 0-3 | new rating: 1457 | ||