Marinkovich, George
Current rating: 1520
Record: 12-11
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 172 | Mowles, Jeremy (1450) | Won 2-0 | +171559 |
| 2modern | 525 | Mouck, Dustin (1463) | Lost 0-2 | -201539 |
| 3modern | 986 | Bays, Jonathan (1468) | Lost 1-2 | -191520 |
| top | average opponent: 1460record: 1-2 | new rating: 1520 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 562 | Ortiz, Martin (1500) | Won 2-0 | +171563 |
| 2modern | 51 | Campbell, Jesse (1488) | Won 2-0 | +161579 |
| 3modern | 104 | Zhang, Peter (1610) | Lost 0-2 | -171562 |
| 4modern | 248 | Conrow, Mikael (1675) | Lost 0-2 | -161546 |
| 5modern | 391 | Monnin, Justin (1426) | Won 2-0 | +161562 |
| 6modern | 340 | Hadam, Eric (1480) | Lost 0-2 | -201542 |
| top | average opponent: 1530record: 3-3 | new rating: 1542 | ||
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 219 | Davis, Albert (1526) | Won 2-1 | +181518 |
| 2sealed | 82 | Chodan, Ross (1653) | Won 2-0 | +211539 |
| 3sealed | 141 | Milliken, Joshua (1646) | Won 2-0 | +201559 |
| 4sealed | 202 | Smith, Buddy (1560) | Won 2-0 | +181577 |
| 5sealed | 55 | Williams, James (1588) | Lost 1-2 | -181559 |
| 6sealed | 57 | Woods, Mark (1560) | Won 2-0 | +181577 |
| 7sealed | 92 | Hovis, Ryan (1891) | Lost 0-2 | -121565 |
| 8sealed | 159 | Paulsen, Daniel (1505) | Lost 0-2 | -191546 |
| top | average opponent: 1616record: 5-3 | new rating: 1546 | ||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 51 | Hastings, Stephen (1496) | Won 2-0 | +181518 |
| 2standard | 342 | O'Dell, Roy (1500) | Lost 0-2 | -181500 |
| 3standard | 521 | Tatta, John (1568) | Lost 0-2 | -171483 |
| 4standard | 695 | Corthell, Curtis (1483) | Won 2-0 | +181501 |
| 5standard | 426 | Scakacs, Jacob (1502) | Won 2-0 | +181519 |
| 6standard | 435 | Morningstar, Chris (1470) | Lost 0-2 | -191500 |
| top | average opponent: 1503record: 3-3 | new rating: 1500 | ||