Grimm, Ron
Current rating: 1486
Record: 2-3
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 209 | Cucunato, Robert (1593) | Lost 0-2 | -161484 |
| 2sealed | 635 | Catlin, Joshua (1527) | Lost 0-2 | -181466 |
| 3sealed | 652 | Propcheck, Jeff (1463) | Won 2-0 | +181484 |
| 4sealed | 544 | Mitchell, Christian (1488) | Lost 0-2 | -181466 |
| 5sealed | 588 | Legassie, Jason (1524) | Won 2-0 | +201486 |
| average opponent: 1519record: 2-3 | new rating: 1486 | |||