Zwingelberg, Jason S
Current rating: 1463
Record: 3-5
| Grand Prix Nashville 2012 (DKA limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 235 | Medders, Micah (1469) | Lost 1-2 | -191482 |
| 2sealed | 299 | Phillips, John (1391) | Lost 0-2 | -191463 |
| average opponent: 1430record: 0-2 | new rating: 1463 | |||
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 120 | Renner, Chase (1500) | Lost 0-2 | -181482 |
| 2sealed | 304 | Phillips, John (1482) | Won 2-0 | +181500 |
| 3sealed | 139 | Brown, Chris (1520) | Won 2-0 | +181518 |
| 4sealed | 206 | Bingham, Chris (1501) | Lost 0-2 | -181500 |
| 5sealed | 258 | Roig, Ben (1481) | Won 2-1 | +181518 |
| 6sealed | 125 | Ferrando, Matthew (1590) | Lost 0-2 | -171501 |
| average opponent: 1512record: 3-3 | new rating: 1501 | |||