Weiner, Mark
Current rating: 1497
| Grand Prix Pittsburgh 2011 (M12 standard) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 63 | Pecora, Gerald (1542) | Lost 1-2 | -181496 |
| 4standard | 266 | Judge, Tom (1521) | Won 2-1 | +191515 |
| 5standard | 154 | Dame, David (1538) | Won 2-0 | +181533 |
| 6standard | 127 | Vaughan, Robert (1495) | Lost 0-2 | -181515 |
| 7standard | 207 | Womble, Ed (1535) | Lost 1-2 | -181497 |
| top | average opponent: 1526record: 2-3 | new rating: 1497 | ||
| Grand Prix Providence 2011 (legacy) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 435 | Ravitz, Joshua (1819) | Won 2-1 | +241489 |
| 4legacy | 455 | Bard, Nicholas (1674) | Lost 1-2 | -141475 |
| 5legacy | 494 | Pyka, Jeffrey (1726) | Won 2-1 | +221497 |
| 6legacy | 454 | Walton, Daniel (1625) | Won 2-0 | +201517 |
| 7legacy | 435 | Sennett, Nick (1526) | Won 2-1 | +191536 |
| 8legacy | 406 | Keith, Jody (1882) | Lost 1-2 | -121524 |
| 9legacy | 454 | Newbold, Jesse (1649) | Won 2-0 | +201544 |
| 10legacy | 38 | Friedman, Ben (1656) | Lost 1-2 | -161528 |
| 11legacy | 60 | O'Connor, Nicholas B (1643) | Won 2-0 | +201548 |
| 12legacy | 61 | Morrill, Alex (1617) | Lost 0-2 | -171531 |
| 13legacy | 67 | Chlobowski, Dominik (1565) | Lost 0-2 | -171514 |
| top | average opponent: 1671record: 6-5 | new rating: 1514 | ||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 97 | Conrad, Michael (1484) | Lost 1-2 | -181482 |
| 2extended | 301 | Stein, Richard (1480) | Lost 1-2 | -181464 |
| 3extended | 394 | Bowers, Steven (1427) | Lost 1-2 | -191445 |
| 4extended | 438 | Fiorillo, Nicholas (1498) | Won 2-1 | +191464 |
| 5extended | 377 | Nieves, Gabriel (1465) | Won 2-1 | +181482 |
| 6extended | 307 | Liao, Kenneth (1547) | Lost 0-2 | -171465 |
| top | average opponent: 1483record: 2-4 | new rating: 1465 | ||