Ewart, William
Current rating: 1505
Record: 13-14
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 15 | Hanerfeld, James (1500) | Won 2-0 | +181535 |
| 2sealed | 132 | Demers, Alexis (1484) | Won 2-0 | +171552 |
| 3sealed | 213 | Robinson, Bradley (1651) | Lost 0-2 | -161536 |
| 4sealed | 369 | Do, Dzi (1545) | Lost 0-2 | -181518 |
| 5sealed | 444 | Dettelis, Philip (1778) | Lost 1-2 | -131505 |
| top | average opponent: 1592record: 2-3 | new rating: 1505 | ||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 163 | Tsai, Jerry (1584) | Lost 1-2 | -181536 |
| 2sealed | 444 | Rhinehart, Joshua (1465) | Lost 0-2 | -191517 |
| top | average opponent: 1525record: 0-2 | new rating: 1517 | ||
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 310 | Culpon, Chase (1516) | Lost 1-2 | -181496 |
| 3standard | 339 | Devito, Andrew (1497) | Won 2-1 | +181514 |
| 4standard | 258 | Carle, Nathan (1517) | Won 2-0 | +181532 |
| 5standard | 283 | Higginbottom, James (1497) | Lost 1-2 | -191513 |
| 6standard | 350 | Wang, Galen (1535) | Won 2-0 | +191532 |
| 7standard | 317 | Des Marais, Nick (1523) | Won 2-0 | +181550 |
| 8standard | 115 | Reed, David (1478) | Won 2-0 | +161566 |
| 9standard | 111 | Pardee, Samuel (1883) | Lost 1-2 | -121554 |
| top | average opponent: 1556record: 5-3 | new rating: 1554 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 702 | Smith, Joe (1508) | Won 2-0 | +171542 |
| 3sealed | 617 | Batschelet, Charles J (1536) | Won 2-1 | +181560 |
| 4sealed | 620 | Stark, Ben S (2063) | Lost 1-2 | -91551 |
| 5sealed | 675 | Mcallister, Robert (1535) | Lost 0-2 | -191532 |
| 6sealed | 722 | Sheu, Curtis (1502) | Lost 0-2 | -181514 |
| top | average opponent: 1629record: 2-3 | new rating: 1514 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 11 | Kelly, Bryan (1500) | Won 2-0 | +181518 |
| 3sealed | 74 | Jiang, Jay (1669) | Won 2-0 | +211539 |
| 4sealed | 150 | Silva Pereira, Alvaro (1553) | Lost 0-2 | -181521 |
| 5sealed | 326 | Dolazza, Marco (1609) | Won 2-1 | +201541 |
| 6sealed | 98 | Droggitis, Dustin (1540) | Won 2-1 | +181559 |
| 7sealed | 117 | Brown, Max (1656) | Lost 1-2 | -171542 |
| 8sealed | 104 | Dahan, Evan (1563) | Lost 1-2 | -171525 |
| top | average opponent: 1584record: 4-3 | new rating: 1525 | ||