Cornwell, Joshua
Current rating: 1469
Record: 6-8
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 182 | DiGioia, Robert (1445) | Won 2-0 | +171503 |
| 2standard | 47 | Hurlburt, James (1518) | Lost 0-2 | -181485 |
| 3standard | 476 | Laurel, Matthew (1452) | Lost 0-2 | -181467 |
| 4standard | 725 | Cunningham, Peter (1470) | Won 2-0 | +181485 |
| 5standard | 370 | Hogg, Owen (1591) | Lost 0-2 | -161469 |
| average opponent: 1495record: 2-3 | new rating: 1469 | |||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1518 | Davidson, John (1550) | Lost 0-2 | -171483 |
| 2modern | 1639 | Mendoza, Luis (1479) | Lost 1-2 | -181465 |
| 3modern | 1637 | Harkins, Cameron (1464) | Won 2-0 | +181483 |
| 4modern | 1591 | Lamar, Scott (1482) | Lost 0-2 | -181465 |
| 5modern | 1425 | Hoegner, Danielle (1336) | Lost 0-2 | -211444 |
| 6modern | 1383 | Eason, Trevor F (1445) | Lost 1-2 | -181426 |
| 7modern | 1213 | Nolan, Brent (1426) | Won 2-0 | +181444 |
| 8modern | 993 | Bouton, Anderson (1418) | Won 2-0 | +181462 |
| 9modern | 861 | Keith, Jody (1784) | Won 2-0 | +241486 |
| average opponent: 1487record: 4-5 | new rating: 1486 | |||