Sonmez, John
Current rating: 1530
| Grand Prix Boston 2003 (LGN limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 38 | Duval, Matthew (1500) | Won 2-1 | +181536 |
| 2sealed | 92 | Robinson, Brian (1335) | Draw 1-1 | -41532 |
| 3sealed | 94 | Vandover, Sean (1487) | Lost 1-2 | -181514 |
| 4sealed | 189 | LaClaire, Larry (1516) | Won 2-1 | +181532 |
| 5sealed | 133 | Veozo, Craig (1519) | Won 2-1 | +171549 |
| 6sealed | 93 | Spaulding, Ian (1475) | Lost 0-2 | -191530 |
| top | average opponent: 1472record: 3-2-1 | new rating: 1530 | ||
| Grand Prix Philadelphia 2002 (ONS rochester) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 78 | Berkowitz, Jordan (1508) | Lost 0-2 | -181483 |
| 5sealed | 76 | Ripley, Peter (1509) | Won 2-0 | +191502 |
| 6sealed | 72 | Thorpe, Sean (1553) | Won 2-0 | +191521 |
| 7sealed | 33 | Choma, Tom (1553) | Won 2-0 | +181539 |
| 8sealed | 28 | Cunniff, Raphael (1708) | ID | 01539 |
| 9rochester | 23 | Severa, Matt (1657) | Won 2-1 | +211560 |
| 10rochester | 9 | Chiumento, Michael (1585) | Won 2-1 | +181578 |
| 11rochester | 1 | Kelleher, Tom (1720) | Lost 1-2 | -151563 |
| 12rochester | 1 | Turian, Michael (1761) | Lost 0-2 | -151548 |
| 13rochester | 9 | Rodemann, Dan (1610) | Lost 0-2 | -171531 |
| 14rochester | 26 | Manning, Christopher (1818) | Lost 0-2 | -131518 |
| top | average opponent: 1635record: 5-5-1 | new rating: 1518 | ||
| Grand Prix Tampa Bay 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 73 | Mercier, Bryan (1500) | Lost 0-2 | -181482 |
| 2sealed | 142 | Chamberlin, John (1482) | Won 2-0 | +181500 |
| 3sealed | 108 | Barthelmes, Anthony (1500) | Draw 1-1 | 01500 |
| 4sealed | 134 | Oberfield, Brent (1520) | Lost 0-2 | -181482 |
| 5sealed | 136 | Techton, Joseph (1480) | Lost 0-2 | -181464 |
| 6sealed | 116 | Rodriguez, Antonio (1516) | Won 2-0 | +191483 |
| 7sealed | 92 | Greenslate, Justin (1482) | Won 2-1 | +181501 |
| top | average opponent: 1497record: 3-3-1 | new rating: 1501 | ||