Spicer, Douglas
Current rating: 1448
| Grand Prix Detroit 2005 (BOK limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 134 | Bilz, Dean (1519) | Lost 1-2 | -171447 |
| 2sealed | 155 | Steele, Akil (1493) | Lost 0-2 | -171430 |
| 3sealed | 199 | Zaccagnini, Ryan (1465) | Won 2-0 | +191449 |
| 4sealed | 179 | Falk, Andy (1489) | Won 2-1 | +181467 |
| 5sealed | 125 | Harris, William (1414) | Lost 1-2 | -191448 |
| top | average opponent: 1476record: 2-3 | new rating: 1448 | ||
| Grand Prix Detroit 2003 (Onslaught block) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 151 | Ferneyhough, Michael (1440) | Lost 0-2 | -181446 |
| 2block | 169 | Holton, Drew (1482) | Won 2-0 | +181464 |
| top | average opponent: 1461record: 1-1 | new rating: 1464 | ||
| Grand Prix Detroit 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 108 | Rumford, Simon A. (1500) | Won 2-1 | +181518 |
| 2sealed | 136 | Pulliam, Lou (1518) | Lost 1-2 | -181500 |
| 3sealed | 140 | Stewart, Michael T (1500) | Lost 1-2 | -181482 |
| 4sealed | 219 | White, Greg (1482) | Lost 1-2 | -181464 |
| top | average opponent: 1500record: 1-3 | new rating: 1464 | ||