Cohen, Aaron
Current rating: 1636
Record: 20-13-1
| Grand Prix Prague 2015 (ORI standard) | starting rating: 1582 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 281 | Halczak, Mateusz (1421) | Won 2-0 | +151597 |
| 2standard | 85 | Sercu, Joery (1468) | Won 2-1 | +161613 |
| 3standard | 29 | Kratter, Filippo (1862) | Won 2-1 | +221635 |
| 4standard | 104 | Heiss, Marvin (1738) | Lost 1-2 | -161619 |
| 5standard | 188 | Zurek, Martin (1452) | Won 2-0 | +151634 |
| 6standard | 129 | Evgrafov, Alexey (1560) | Won 2-1 | +171651 |
| 7standard | 74 | Kedrovic, Ondrej (1698) | Won 2-1 | +191670 |
| 8standard | 44 | Meier, Michael (1789) | Won 2-0 | +201690 |
| 9standard | 15 | Popov, Miro (1547) | Lost 1-2 | -211669 |
| 10standard | 74 | Aue, Adrian (1590) | Lost 1-2 | -191650 |
| 11standard | 77 | de Togni, Marco (1720) | Lost 1-2 | -171633 |
| 12standard | 78 | Guesnel, Quentin (1584) | Won 2-1 | +171650 |
| 13standard | 77 | Janik, Maciej (1884) | Lost 1-2 | -141636 |
| top | average opponent: 1640record: 8-5 | new rating: 1636 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1549 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1590 | Buckingham, Dustin (1488) | Won 2-0 | +171566 |
| 2legacy | 1418 | Thompson, Grant (1518) | Won 2-0 | +171583 |
| 3legacy | 1629 | Liu, Nevin (1517) | Won 2-0 | +171600 |
| 4legacy | 1457 | Vanderpoel, Spencer (1555) | Draw 1-1 | -11599 |
| 5legacy | 1469 | Herrera, Marco (1693) | Lost 0-2 | -161583 |
| 6legacy | 1592 | Barfield, Dillon (1559) | Won 2-0 | +171600 |
| 7legacy | 1502 | Wilson, Tim S (1579) | Lost 1-2 | -181582 |
| top | average opponent: 1558record: 4-2-1 | new rating: 1582 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 580 | Swank, Zane (1372) | Won 2-0 | +161498 |
| 2sealed | 365 | Darmouni, Olivier (1596) | Lost 0-2 | -161482 |
| 3sealed | 682 | Peralta, Gonzalo (1491) | Won 2-0 | +181500 |
| 4sealed | 462 | Amoriello, Russell A (1453) | Won 2-1 | +171517 |
| 5sealed | 247 | Folinus, Jeff (1920) | Lost 0-2 | -111506 |
| 6sealed | 407 | Tipping, Mike (1517) | Won 2-1 | +181524 |
| 7sealed | 152 | Cibak, Kyle (1581) | Won 2-1 | +191543 |
| 8sealed | 186 | Vance, James (1746) | Won 0-0 | +221565 |
| 9sealed | 160 | Sklar, Jacob (1696) | Lost 0-2 | -161549 |
| top | average opponent: 1597record: 6-3 | new rating: 1549 | ||
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 474 | Illum, Jared (1500) | Lost 0-2 | -181482 |
| 2sealed | 424 | Taylor, Matthew (1482) | Won 2-0 | +181500 |
| 3sealed | 479 | Custer, Nicolas (1534) | Lost 1-2 | -171483 |
| 4sealed | 527 | Cooke, Cody (1482) | Won 2-0 | +181501 |
| 5sealed | 415 | Shupe, Samuel (1458) | Lost 0-2 | -191482 |
| top | average opponent: 1491record: 2-3 | new rating: 1482 | ||