Cullen, Joshua R
Current rating: 1428
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 117 | Rowe, Jonathan (1499) | Lost 0-2 | -181445 |
| 2standard | 368 | Johnson, Koran (1482) | Won 2-0 | +191464 |
| 3standard | 304 | Leveille, Tom (1442) | Lost 1-2 | -181446 |
| 4standard | 369 | Waitz, Dorian (1483) | Lost 1-2 | -181428 |
| top | average opponent: 1476record: 1-3 | new rating: 1428 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 86 | McLaughlin, Charles (1449) | Won 2-1 | +171518 |
| 2legacy | 213 | Koresko, Jason (1506) | Lost 0-2 | -181500 |
| 3legacy | 364 | Haglund, Brendan (1447) | Lost 0-2 | -191481 |
| 4legacy | 425 | Parsinitz, Ralph (1478) | Lost 0-2 | -181463 |
| top | average opponent: 1470record: 1-3 | new rating: 1463 | ||
| Grand Prix Richmond 2006 (GPT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 176 | Torres, Sergio (1500) | Lost 1-2 | -181482 |
| 2sealed | 157 | Moore, John (1489) | Won 2-0 | +181500 |
| 3sealed | 113 | Chalice, Mark (1533) | Won 2-0 | +191519 |
| 4sealed | 133 | Ferrer, Chris (1522) | Lost 1-2 | -181501 |
| top | average opponent: 1511record: 2-2 | new rating: 1501 | ||