Peacock, William
Current rating: 1497
Record: 4-4-2
| Grand Prix Oklahoma City 2017 (modern) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 326 | Prentice, Aaron (1525) | Lost 1-2 | -181516 |
| 2modern | 420 | Baros, Zach (1474) | Lost 0-2 | -191497 |
| average opponent: 1499record: 0-2 | new rating: 1497 | |||
| Grand Prix Charleston 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 203 | Campbell, Kevin (1431) | Draw 0-0 | -11499 |
| 2standard | 152 | Butler, Thomas (1515) | Lost 0-2 | -181481 |
| 3standard | 240 | Litchfield, Kevin (1462) | Won 2-0 | +181499 |
| 4standard | 212 | Moyer, Chris (1465) | Won 2-0 | +171516 |
| 5standard | 151 | Harrison, Kevin (1513) | Lost 1-2 | -181498 |
| 6standard | 204 | Jachim, Robert (1497) | Won 2-0 | +181516 |
| 7standard | 150 | Yeargin, Bradley (1517) | Won 2-0 | +181534 |
| 8standard | 105 | Akers, Jeffrey (1534) | Draw 0-0 | 01534 |
| average opponent: 1492record: 4-2-2 | new rating: 1534 | |||