Ducker Duffy, Matthew
Current rating: 1484
Record: 2-3
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 67 | Rubin, Jonathan (1692) | Lost 0-2 | -151485 |
| 2sealed | 346 | Pouridas, Vincent (1484) | Lost 0-2 | -181467 |
| 3sealed | 651 | Noll, Jeffrey (1468) | Won 2-1 | +181485 |
| 4sealed | 522 | Roberts, Christopher 132 (1481) | Won 2-0 | +181503 |
| 5sealed | 356 | Brewer, Paul (1421) | Lost 1-2 | -191484 |
| average opponent: 1509record: 2-3 | new rating: 1484 | |||