Jones, Zac
Current rating: 1526
Record: 6-5
| Grand Prix Atlanta 2011 (extended) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 426 | Pass, Mark F (1518) | Won 2-1 | +181542 |
| 3extended | 480 | McKenzie, E (1455) | Won 2-1 | +161558 |
| 4extended | 420 | Wienburg, Ben (1734) | Lost 1-2 | -151543 |
| 5extended | 462 | Patton, David (1577) | Lost 1-2 | -171526 |
| average opponent: 1571record: 2-2 | new rating: 1526 | |||
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 57 | Fisk, Kevin (1446) | Won 2-0 | +171517 |
| 2sealed | 149 | Reed, Douglas (1500) | Won 2-0 | +181535 |
| 3sealed | 35 | Lundquist, Anthony M (1518) | Won 2-1 | +171552 |
| 4sealed | 93 | Turtenwald, Owen (1906) | Won 2-0 | +251577 |
| 5sealed | 30 | Havlovic, Bob (1694) | Lost 0-2 | -161561 |
| 6sealed | 100 | Miller, Larry (1557) | Lost 0-2 | -181543 |
| 7sealed | 72 | Flores, Edgar (1496) | Lost 1-2 | -191524 |
| average opponent: 1588record: 4-3 | new rating: 1524 | |||