Marney, Robert
Current rating: 1405
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1410 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 339 | Elgin, Jack (1608) | Draw 1-1 | +31413 |
| 2legacy | 372 | Ewing, John (1612) | Lost 0-2 | -141399 |
| 3legacy | 677 | Baker, Jesse (1482) | Won 2-0 | +201419 |
| 4legacy | 579 | Ruggiero, Michael (1499) | Lost 0-2 | -171402 |
| 5legacy | 679 | Whitesell, Francis (1482) | Lost 0-2 | -171385 |
| 6legacy | 642 | Weidel, Robert (1465) | Won 2-0 | +201405 |
| top | average opponent: 1525record: 2-3-1 | new rating: 1405 | ||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 131 | Kamerow, Simon (1488) | Lost 1-2 | -181464 |
| 2standard | 529 | Bidwell, Nathan (1409) | Lost 0-2 | -191445 |
| 3standard | 653 | Zupko, Kyle D (1465) | Lost 1-2 | -171428 |
| 4standard | 731 | Reichert, Samantha (1447) | Won 2-0 | +181446 |
| 5standard | 637 | Vargas, Jack (1382) | Lost 0-2 | -191427 |
| 6standard | 576 | Cobey, Tucker (1444) | Lost 0-2 | -181409 |
| 7standard | 489 | Kisiel, Jessica (1427) | Won 2-0 | +191428 |
| 8standard | 387 | Buss, Teresa (1448) | Lost 0-2 | -181410 |
| top | average opponent: 1439record: 2-6 | new rating: 1410 | ||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 337 | Brown, Donald (1500) | Draw 1-1 | 01500 |
| 2standard | 236 | Southard, Ted E (1500) | Won 2-0 | +181518 |
| 3standard | 143 | Cummings, Michael (1518) | Lost 0-2 | -181500 |
| 4standard | 288 | Genzman, Thomas (1514) | Draw 1-1 | 01500 |
| 5standard | 342 | Hoffman, Ryan (1499) | Lost 1-2 | -181482 |
| top | average opponent: 1506record: 1-2-2 | new rating: 1482 | ||