Pierce-Ruhland, Jonathan
Current rating: 1501
Record: 4-4
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 375 | Studley, James (1560) | Lost 0-2 | -171483 |
| 2sealed | 511 | Goings, Adin (1482) | Won 2-1 | +181501 |
| 3sealed | 367 | Buttke, Josh (1482) | Lost 0-2 | -181483 |
| 4sealed | 417 | Bentson, Daniel (1479) | Won 2-1 | +181501 |
| 5sealed | 379 | Ranallo, Nick (1467) | Lost 0-2 | -191482 |
| 6sealed | 344 | Robbins, Randall (1482) | Won 2-1 | +181500 |
| 7sealed | 246 | Davis, Josiah A (1529) | Won 2-1 | +191519 |
| 8sealed | 183 | Shaw, Adam (1517) | Lost 1-2 | -181501 |
| average opponent: 1500record: 4-4 | new rating: 1501 | |||