Marioni, Robert L
Current rating: 1502
Record: 3-3
| Grand Prix Nashville 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 205 | Dyer, Brandon M (1481) | Lost 1-2 | -181482 |
| 2sealed | 334 | Crouse-Helford, Lane (1482) | Won 2-1 | +181500 |
| 3sealed | 339 | Tharpe, Andrew (1481) | Won 2-1 | +171517 |
| 4sealed | 253 | Conard, Brad (1537) | Lost 0-2 | -171500 |
| 5sealed | 310 | Buchanan, Samuel (1635) | Lost 1-2 | -161484 |
| 6sealed | 356 | Lancaster, Jeff D (1482) | Won 2-0 | +181502 |
| average opponent: 1516record: 3-3 | new rating: 1502 | |||