Guimaraes, Marcus
Current rating: 1445
Record: 1-4
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 42 | Roger, Philippe (1500) | Won 2-0 | +181518 |
| 2standard | 191 | Pitman, Anthony S (1402) | Lost 0-2 | -201498 |
| 3standard | 211 | Danto, Michael (1482) | Lost 0-2 | -181480 |
| 4standard | 505 | Mosier, Matt (1485) | Lost 1-2 | -181462 |
| 5standard | 510 | Russell, Matthew (1526) | Lost 1-2 | -171445 |
| average opponent: 1479record: 1-4 | new rating: 1445 | |||