Gregson, Joshua
Current rating: 1444
Record: 1-4
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 6 | Peltokangas, Henry (1431) | Won 2-1 | +171517 |
| 2sealed | 347 | Rabel, Joe (1500) | Lost 0-2 | -191498 |
| 3sealed | 401 | Horner, Aaron (1450) | Lost 0-2 | -181480 |
| 4sealed | 616 | Lee, Evan (1483) | Lost 0-2 | -181462 |
| 5sealed | 581 | Boucher, Christopher (1464) | Lost 0-2 | -181444 |
| average opponent: 1466record: 1-4 | new rating: 1444 | |||