Wadden, Bill
Current rating: 1500
Record: 3-3-1
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 71 | Bakstran, Gordon (1465) | Won 2-1 | +171517 |
| 2sealed | 85 | Sanguinetti, James (1569) | Lost 0-2 | -171500 |
| 3sealed | 233 | Sinclair, Heather M (1499) | Won 2-0 | +181518 |
| 4sealed | 183 | Fleisher, Ryan (1522) | Lost 0-2 | -181500 |
| 5sealed | 203 | Heinz, Luke (1501) | Won 2-1 | +181518 |
| 6sealed | 189 | Brown, Max (1499) | Lost 0-2 | -181500 |
| 7sealed | 164 | Markowitz, Jonathan (1503) | Draw 1-1 | 01500 |
| average opponent: 1508record: 3-3-1 | new rating: 1500 | |||