Duane, Joshua
Current rating: 1427
Record: 1-5
| Grand Prix Portland 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 84 | Lowenstein, Matt A (1483) | Lost 0-2 | -181482 |
| 2modern | 231 | Bamann, William (1482) | Lost 1-2 | -181464 |
| 3modern | 100 | Krantz, Benjamin (1450) | Won 2-1 | +171481 |
| 4modern | 435 | Leof, Natty (1447) | Lost 1-2 | -181463 |
| 5modern | 388 | Bean, Glen (1461) | Lost 1-2 | -181445 |
| 6modern | 374 | Roowe, Alex (1445) | Lost 0-2 | -181427 |
| average opponent: 1461record: 1-5 | new rating: 1427 | |||