Tessler, Jonathan
Current rating: 1534
Record: 8-6
| Grand Prix Atlanta 2011 (extended) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 559 | McAlexander, Chris (1500) | Lost 1-2 | -191538 |
| 2extended | 584 | Owens, Matthew (1493) | Won 2-0 | +171555 |
| 3extended | 566 | Clark, David J (1471) | Lost 1-2 | -191536 |
| 4extended | 632 | Murphy, Wesley (1518) | Won 2-1 | +181554 |
| 5extended | 566 | Dykes, Tim (1465) | Lost 1-2 | -201534 |
| average opponent: 1489record: 2-3 | new rating: 1534 | |||
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 156 | Baumgartner, Justin (1500) | Won 2-1 | +181518 |
| 2sealed | 189 | Tramper, Auston (1501) | Lost 1-2 | -181500 |
| 3sealed | 193 | Lohman, Martin D (1635) | Lost 0-2 | -161484 |
| 4sealed | 313 | Culp, Bob (1481) | Lost 0-2 | -181466 |
| 5sealed | 272 | Potter, Jason (1468) | Won 2-0 | +181484 |
| 6sealed | 210 | Phiffer, Aaron (1481) | Won 2-0 | +181502 |
| 7sealed | 166 | Sutcliffe, Donald (1502) | Won 2-0 | +181520 |
| 8sealed | 113 | Reilly, Michael (1616) | Won 2-1 | +201540 |
| 9sealed | 81 | Byrum, James (1511) | Won 2-0 | +171557 |
| average opponent: 1522record: 6-3 | new rating: 1557 | |||