Kopchak, Michael
Current rating: 1323
Record: 15-28
| Grand Prix Detroit 2019 (M20 limited) | starting rating: 1310 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 195 | Graves, Tommy (1500) | Won 2-1 | +211331 |
| 2sealed | 29 | Bold Wark, Lewis (1717) | Lost 0-2 | -111320 |
| 3sealed | 252 | Geib, Brandon (1499) | Lost 1-2 | -151305 |
| 4sealed | 279 | Kirin, Michael (1443) | Won 2-0 | +211326 |
| 5sealed | 224 | Hoose, Maxwell (1584) | Won 2-0 | +221348 |
| 6sealed | 129 | Asbach, John (1784) | Lost 0-2 | -101338 |
| 7sealed | 159 | Joshi, Prithvi (1497) | Lost 0-2 | -151323 |
| top | average opponent: 1575record: 3-4 | new rating: 1323 | ||
| Grand Prix Indianapolis 2017 (HOU limited) | starting rating: 1403 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 329 | Naples, Anthony (1580) | Lost 1-2 | -151388 |
| 2sealed | 430 | Walters, Erich (1486) | Lost 1-2 | -161372 |
| 3sealed | 536 | Scipio, Henry (1478) | Lost 1-2 | -161356 |
| 4sealed | 532 | Skipworth, Nathan (1333) | Lost 0-2 | -191337 |
| 6sealed | 466 | Arvin, Jake (1404) | Won 2-0 | +201357 |
| 7sealed | 404 | Hall, Abigail (1461) | Lost 0-2 | -161341 |
| 8sealed | 371 | Wu, Jiasheng (1527) | Lost 0-2 | -151326 |
| 9sealed | 325 | Plicque, Joshua (1433) | Lost 0-2 | -161310 |
| top | average opponent: 1463record: 1-7 | new rating: 1310 | ||
| Grand Prix Indianapolis 2016 (modern) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 153 | Wong, Thomas (1513) | Won 2-1 | +191488 |
| 2modern | 264 | Sallee, Caleb (1401) | Lost 0-2 | -191469 |
| 3modern | 603 | Collins, Kenyon (1739) | Lost 1-2 | -141455 |
| 4modern | 857 | Hurst, Chris (1485) | Lost 1-2 | -171438 |
| 5modern | 866 | Painter, Colby (1463) | Lost 0-2 | -181420 |
| 6modern | 814 | Ruch, Patrick (1444) | Lost 0-2 | -171403 |
| top | average opponent: 1508record: 1-5 | new rating: 1403 | ||
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 369 | Carter, Craig (1500) | Won 2-0 | +181499 |
| 2standard | 126 | Nowicki, Eric (1518) | Lost 0-2 | -171482 |
| 3standard | 1067 | Foster, Colin (1500) | Won 2-0 | +181500 |
| 4standard | 1050 | Briand, Philippe (1514) | Lost 1-2 | -181482 |
| 5standard | 434 | Ceh, Tomislav (1515) | Won 2-0 | +191501 |
| 6standard | 256 | Stagno, Chris (1484) | Won 2-0 | +181519 |
| 7standard | 284 | Gollop, Michael (1465) | Won 2-0 | +171536 |
| 8standard | 101 | Cook, Cory (1558) | Lost 0-2 | -181518 |
| 9standard | 279 | Anderson, Eric (1556) | Won 2-1 | +191537 |
| 10standard | 132 | Felicetti, Ted (1804) | Lost 0-2 | -131524 |
| 11standard | 199 | Kelterbaum, Richard (1417) | Lost 1-2 | -201504 |
| 12standard | 187 | Bush, Jeremy (1485) | Lost 1-2 | -191485 |
| 14standard | 153 | Janssen, Scott (1602) | Lost 0-2 | -161469 |
| top | average opponent: 1532record: 6-7 | new rating: 1469 | ||
| Grand Prix Detroit 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 689 | Norton, Cory (1500) | Lost 1-2 | -181482 |
| 2modern | 769 | Shelton, David (1527) | Lost 1-2 | -171465 |
| 3modern | 1130 | Vanderlooven, Doug (1362) | Won 2-1 | +161481 |
| 4modern | 955 | McDowell, Connor (1480) | Won 2-0 | +181499 |
| 5modern | 904 | King, Alex (1485) | Lost 0-2 | -181481 |
| 6modern | 754 | Zeitz, Ryan (1482) | Lost 1-2 | -181463 |
| 7modern | 906 | Schank, Darryl (1463) | Won 2-0 | +181481 |
| 8modern | 740 | Preston, Christopher (1469) | Won 2-0 | +181499 |
| 9modern | 605 | Endejan, Caleb (1533) | Lost 0-2 | -181481 |
| top | average opponent: 1478record: 4-5 | new rating: 1481 | ||