Diottaviano, Joseph
Current rating: 1460
Record: 4-7
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 351 | Doerrie, Mark (1449) | Won 2-0 | +171482 |
| 2sealed | 212 | Mitchell, Billy (1926) | Won 2-1 | +261508 |
| 3sealed | 47 | Scheibel, James (1429) | Lost 1-2 | -191489 |
| 4sealed | 462 | Barlow, David (1799) | Lost 1-2 | -131476 |
| 5sealed | 509 | Sheridan, Conor (1531) | Lost 0-2 | -171459 |
| 6sealed | 604 | Munson, Victor (1481) | Won 2-0 | +181477 |
| 7sealed | 435 | Ottomano, Joe (1498) | Lost 1-2 | -171460 |
| average opponent: 1588record: 3-4 | new rating: 1460 | |||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 470 | VanFleet, James (1500) | Lost 1-2 | -181482 |
| 2sealed | 364 | Miller, Sandy (1463) | Won 2-0 | +181500 |
| 3sealed | 440 | [anonymous] | Lost 0-2 | -171483 |
| 4sealed | 444 | Bowling, Robert (1481) | Lost 1-2 | -181465 |
| average opponent: 1501record: 1-3 | new rating: 1465 | |||