Chapman Jr, William
Current rating: 1471
Record: 3-5-1
| Grand Prix Charlotte 2015 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 406 | Parr, Tony (1500) | Lost 0-2 | -171447 |
| 2modern | 563 | Mcmahon, Keegan H (1482) | Draw 1-1 | 01447 |
| 3modern | 589 | Ucci, Matthew (1482) | Lost 0-2 | -171430 |
| 4modern | 632 | Minoda, Jordan (1464) | Won 2-0 | +191449 |
| 5modern | 553 | Uzoaru, Ijeoma (1477) | Won 2-0 | +181467 |
| 6modern | 470 | Turner, Chris (1501) | Won 2-0 | +191486 |
| 7modern | 402 | Piland, Jesse (1661) | Lost 1-2 | -151471 |
| average opponent: 1510record: 3-3-1 | new rating: 1471 | |||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 97 | Melendez, Luis Carlos (1500) | Lost 1-2 | -181482 |
| 2sealed | 350 | Guffy, Travis (1482) | Lost 0-2 | -181464 |
| average opponent: 1491record: 0-2 | new rating: 1464 | |||