Pruess, David
Current rating: 1417
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 126 | Hulst, Cory (1500) | Lost 1-2 | -161415 |
| 2sealed | 345 | Cassetta, Mark (1481) | Won 2-0 | +191434 |
| 3sealed | 222 | Vandermeyden, Michael (1500) | Lost 0-2 | -171417 |
| top | average opponent: 1494record: 1-2 | new rating: 1417 | ||
| Grand Prix Portland 2013 (modern) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 202 | Steinfeld, Alexander (1588) | Lost 0-2 | -161446 |
| 2modern | 319 | Skelly, Shane (1482) | Won 2-0 | +191465 |
| 3modern | 198 | Davis, Albert (1541) | Lost 1-2 | -171448 |
| 4modern | 396 | D'Asaro, Joseph (1504) | Lost 0-2 | -171431 |
| top | average opponent: 1529record: 1-3 | new rating: 1431 | ||
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 156 | Kimura, Shawn (1364) | Lost 1-2 | -201480 |
| 2block | 204 | Gilliam, Charles (1482) | Won 2-1 | +181498 |
| 3block | 145 | Brewer, Morgan T (1482) | Lost 0-2 | -191479 |
| 4block | 263 | Elling, Tanner (1482) | Won 2-1 | +181497 |
| 5block | 157 | Ramos, Jorge E (1500) | Lost 1-2 | -181479 |
| 6block | 208 | Robinson, Billy D (1516) | Lost 1-2 | -171462 |
| top | average opponent: 1471record: 2-4 | new rating: 1462 | ||