Butterfield, Chad
Current rating: 1459
Record: 2-2-1 (GP) / 2-5 (professional)
| Grand Prix Detroit 2001 (PLS limited) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 140 | Clougherty, John (1616) | Won 2-0 | +211470 |
| 3sealed | 64 | Humphreys, Daniel (1499) | Lost 0-2 | -171453 |
| 4sealed | 183 | Taylor, Eric (1641) | Won 2-0 | +211474 |
| 5sealed | 119 | Barnes, Joel 2 (1539) | Draw 1-1 | +21476 |
| 6sealed | 94 | Johnson, Stephen (1536) | Lost 0-2 | -171459 |
| average opponent: 1566record: 2-2-1 | new rating: 1459 | |||
| Pro Tour Rome 1998 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 93 | Merten, David (1500) | Lost 0-0 | -181482 |
| 2extended | 83 | Tsai, Tony (1537) | Lost 0-0 | -171465 |
| 3extended | 108 | Gennari, Raphael (1465) | Won 0-0 | +181483 |
| 4extended | 89 | Bachmann, David (1620) | Lost 0-0 | -161467 |
| 5extended | 114 | Ikeda, Tsuyoshi (1464) | Lost 0-0 | -181449 |
| 6extended | 112 | Jurkovic, Robert (1449) | Won 0-0 | +181467 |
| 7extended | 90 | Garrett, Richard (1466) | Lost 0-0 | -181449 |
| average opponent: 1500record: 2-5 | new rating: 1449 | |||