Powell, Josh
Current rating: 1585
Record: 10-7-1
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 522 | MacMurdo, Walker (1613) | Won 2-1 | +211470 |
| 2legacy | 312 | Patrick-Riley, Josh (1439) | Won 2-0 | +181488 |
| 3legacy | 56 | Ward, Daniel (1930) | Won 2-0 | +251513 |
| 4legacy | 105 | Marucci, Joe (1467) | Won 2-0 | +171530 |
| 5legacy | 40 | Brown, Eric (1884) | Lost 1-2 | -111519 |
| 6legacy | 176 | Mohamed, Aaron (1561) | Won 2-0 | +181537 |
| 7legacy | 51 | Zhao, Tianyi (1527) | Draw 1-1 | 01537 |
| 8legacy | 88 | Heard, Jaron (1748) | Won 2-1 | +221559 |
| 9legacy | 53 | Lau, Patrik (1563) | Won 2-1 | +181577 |
| 10legacy | 29 | Scott, Matt (1618) | Lost 1-2 | -171560 |
| 11legacy | 71 | Deal, Justin (1589) | Won 2-0 | +181578 |
| 12legacy | 45 | Caudill, Eddie (1722) | Lost 0-0 | -151563 |
| 13legacy | 66 | Ling, Matthew (1714) | Won 0-0 | +211584 |
| 14legacy | 46 | Das, Anuraag (1545) | Lost 0-2 | -191565 |
| 15legacy | 63 | Hanna, Will (1688) | Won 2-1 | +201585 |
| average opponent: 1641record: 10-4-1 | new rating: 1585 | |||
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 465 | Aracich, Jim (1687) | Lost 0-2 | -151485 |
| 2sealed | 624 | Sopher, Brett (1483) | Lost 0-2 | -181467 |
| 3sealed | 649 | Topliffe, Daniel (1467) | Lost 0-2 | -181449 |
| average opponent: 1545record: 0-3 | new rating: 1449 | |||