Sykes, Jonathan
Current rating: 1458
Record: 9-12-2
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 733 | Batschelet, Charles J (1500) | Lost 0-0 | -181457 |
| 2sealed | 803 | Kraft, Fred (1466) | Draw 1-1 | +11458 |
| 3sealed | 866 | Fairbanks, Joe (1430) | Draw 1-1 | -11457 |
| 4sealed | 926 | Reed, Josh (1481) | Won 2-1 | +191476 |
| 5sealed | 850 | Coffman, Robert (1526) | Lost 0-2 | -181458 |
| top | average opponent: 1481record: 1-2-2 | new rating: 1458 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 25 | Levy, Mark A (1464) | Won 2-0 | +181487 |
| 2sealed | 197 | Franco, Andre (1639) | Lost 1-2 | -161471 |
| 3sealed | 180 | Cloke, Justin (1516) | Lost 0-2 | -171454 |
| 4sealed | 337 | Herrera, Donny (1480) | Won 2-0 | +191473 |
| 5sealed | 232 | Dyke, Matthew (1468) | Won 2-1 | +181491 |
| 6sealed | 222 | Edmond, Scott (1486) | Won 2-0 | +181509 |
| 7sealed | 183 | Fox, Adam M (1588) | Lost 1-2 | -171492 |
| 8sealed | 152 | Lundblad, Erik (1547) | Lost 1-2 | -171475 |
| top | average opponent: 1524record: 4-4 | new rating: 1475 | ||
| Grand Prix Daytona Beach 2007 (LRW limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 137 | Gaynor, Jack (1500) | Won 2-1 | +191483 |
| 2sealed | 93 | Suarez, Daniel (1537) | Lost 0-2 | -171466 |
| 3sealed | 189 | Kirk, Curtis E (1499) | Won 2-0 | +181484 |
| 4sealed | 125 | Hurst, Anthony H (1517) | Won 2-1 | +191503 |
| 5sealed | 97 | Dao, Phu (1606) | Lost 1-2 | -161487 |
| 6sealed | 117 | Potier, Robert (1487) | Lost 0-2 | -181469 |
| top | average opponent: 1524record: 3-3 | new rating: 1469 | ||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 120 | Newton, Michael (1500) | Lost 0-2 | -181482 |
| 2block | 199 | Bickle, Marcus (1482) | Won 2-1 | +181500 |
| 3block | 92 | Rowe, Barry (1502) | Lost 0-2 | -181482 |
| 4block | 211 | Mullins, Mike (1481) | Lost 1-2 | -181464 |
| top | average opponent: 1491record: 1-3 | new rating: 1464 | ||