Mattei, Brian
Current rating: 1427
| Grand Prix New Jersey 2020 (THB limited) | starting rating: 1439 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 354 | Wesner, Jeff (1500) | Won 2-1 | +191458 |
| 2sealed | 20 | Cahayla, Robert (1522) | Lost 1-2 | -171441 |
| 3sealed | 572 | Long, Hogan (1610) | Lost 0-2 | -141427 |
| top | average opponent: 1544record: 1-2 | new rating: 1427 | ||
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 50 | DeLange, Jason (1657) | Won 2-0 | +211467 |
| 2sealed | 178 | Wong, Matthew (1732) | Lost 0-2 | -131454 |
| 3sealed | 577 | Eck, James (1621) | Lost 0-2 | -151439 |
| top | average opponent: 1670record: 1-2 | new rating: 1439 | ||
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 188 | Greaves, Raymond (1483) | Lost 0-2 | -181482 |
| 2sealed | 626 | DiMarco, C. Marcus (1481) | Lost 0-2 | -181464 |
| 3sealed | 718 | Best, Hepburn (1464) | Lost 1-2 | -181446 |
| top | average opponent: 1476record: 0-3 | new rating: 1446 | ||