DiJohnson, Billy
Current rating: 1541
| Grand Prix New Jersey 2006 (TSP limited) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 154 | Ward, Brendan (1500) | Won 2-0 | +161579 |
| 2sealed | 221 | DiTizio, Nicholas (1483) | Lost 0-2 | -191560 |
| 3sealed | 296 | Dixon, Robert (1518) | Lost 0-2 | -191541 |
| top | average opponent: 1500record: 1-2 | new rating: 1541 | ||
| Grand Prix Boston 2003 (LGN limited) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 18 | Linskey, Ed (1714) | Won 2-0 | +211590 |
| 3sealed | 22 | Fuller, Ryan (2027) | Lost 0-2 | -111579 |
| 4sealed | 94 | Wolfman, Steven (1652) | Lost 0-2 | -161563 |
| top | average opponent: 1798record: 1-2 | new rating: 1563 | ||
| Grand Prix Philadelphia 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 24 | Rose, Jason (1483) | Lost 1-2 | -181482 |
| 3sealed | 174 | Quirk, Kevin (1632) | Won 2-0 | +201502 |
| 4sealed | 169 | Reeves, Neil (1780) | Won 2-1 | +231525 |
| 5sealed | 103 | Davis, Brian (1967) | Won 2-0 | +261551 |
| 6sealed | 57 | Severa, Matt (1624) | Lost 0-2 | -171534 |
| 7sealed | 103 | Escaro, Alexander (1505) | Won 2-1 | +181552 |
| 8sealed | 47 | Churchill, Lee (1522) | Won 2-0 | +171569 |
| top | average opponent: 1645record: 5-2 | new rating: 1569 | ||