Ericson, William
Current rating: 1395
Record: 2-5 (GP) / 2-7 (professional)
| Grand Prix Atlanta 2001 (ODY limited) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 21 | Kesselman, Eric (1705) | Won 2-0 | +231450 |
| 5sealed | 18 | Barr, Ryan (1572) | Lost 1-2 | -151435 |
| 6sealed | 50 | Howes, Gordon (1497) | Won 2-0 | +191454 |
| 7sealed | 20 | Linde, Matt (1630) | ID | 01454 |
| 8rochester | 28 | Freneau, Phil (1636) | Lost 0-2 | -151439 |
| 9rochester | 11 | Devenport, David (1704) | Lost 0-2 | -131426 |
| 10rochester | 14 | Stead, Bill (1647) | Lost 0-2 | -141412 |
| 11rochester | 1 | Greer, Joseph (1477) | Lost 0-2 | -171395 |
| top | average opponent: 1609record: 2-5-1 | new rating: 1395 | ||
| Pro Tour Los Angeles 2001 (INV rochester) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 1rochester | 55 | Stern, Dustin (1691) | Lost 0-2 | -141438 |
| 2rochester | 3 | Bjork, Artturi (1534) | Won 2-0 | +201458 |
| 3rochester | 77 | Maruyama, Tomohiro (1626) | Lost 0-2 | -151443 |
| 4rochester | 72 | Dobrigna, Loic (1575) | Lost 0-2 | -161427 |
| top | average opponent: 1606record: 1-3 | new rating: 1427 | ||
| Pro Tour Chicago 1999 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 103 | O'Mahoney-Schwartz, Daniel (1626) | Lost 0-2 | -161484 |
| 2extended | 148 | Peschta, Christian (1501) | Won 2-1 | +191503 |
| 3extended | 53 | Leventhal, Dennis (1552) | Lost 0-2 | -181485 |
| 4extended | 99 | De Lucis, Mario (1628) | Lost 0-2 | -151470 |
| 5extended | 145 | Sasanuma, Kiyoshi (1468) | Lost 0-2 | -181452 |
| top | average opponent: 1555record: 1-4 | new rating: 1452 | ||