Petrizzi, Joe
Current rating: 1460
Record: 16-19-1
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1455 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 273 | Dillahunty, Matt (1500) | Won 2-0 | +191474 |
| 2sealed | 131 | Lindahl, Zachary A (1518) | Lost 1-2 | -171457 |
| 3sealed | 280 | Walters, Eric (1517) | Lost 0-2 | -171440 |
| 4sealed | 437 | Saia, Joseph (1485) | Won 2-1 | +181458 |
| 5sealed | 316 | Torres, Claudio (1500) | Won 2-0 | +191477 |
| 6sealed | 194 | McMillen, Jacob (1517) | Lost 0-2 | -171460 |
| top | average opponent: 1506record: 3-3 | new rating: 1460 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 550 | Darley, Garrett (1500) | Won 2-0 | +191487 |
| 2extended | 536 | Russ, Oliver (1413) | Lost 0-2 | -191468 |
| 3extended | 579 | Millsap, Roy M (1501) | Won 2-1 | +181486 |
| 4extended | 518 | Herbert, Rich (1699) | Lost 1-2 | -141472 |
| 5extended | 556 | Laviolette, Michael A (1518) | Lost 1-2 | -171455 |
| top | average opponent: 1526record: 2-3 | new rating: 1455 | ||
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 64 | Hogsett, Richard R (1500) | Won 2-1 | +181503 |
| 2sealed | 163 | Williams, Jason D (1500) | Won 2-0 | +181521 |
| 3sealed | 43 | Dobbins, James S (1538) | Lost 0-2 | -181503 |
| 4sealed | 219 | Gozmeral, Yigit (1518) | Won 2-0 | +181521 |
| 5sealed | 105 | Miller, Larry (1539) | Lost 0-2 | -171504 |
| 6sealed | 176 | Jelin, Josh (1578) | Lost 1-2 | -171487 |
| 7sealed | 157 | Ingersoll, Chris (1451) | Lost 1-2 | -191468 |
| top | average opponent: 1518record: 3-4 | new rating: 1468 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 51 | Yancey, David (1510) | Lost 0-2 | -181503 |
| 2sealed | 293 | Bodell, Griffin (1481) | Won 2-0 | +171520 |
| 3sealed | 272 | Doshi, Vishvas (1569) | Lost 1-2 | -171503 |
| 4sealed | 355 | Benson, Mike (1467) | Lost 0-2 | -181485 |
| top | average opponent: 1507record: 1-3 | new rating: 1485 | ||
| Grand Prix Atlanta 2008 (ALA limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 114 | Glenny, Jeff (1500) | Won 2-0 | +181517 |
| 2sealed | 170 | Wilkerson, Tyler (1518) | Won 2-0 | +181535 |
| 3sealed | 29 | Esposito, John (1626) | Won 2-1 | +201555 |
| 4sealed | 5 | Aranami, Naoto (1517) | Lost 0-2 | -191536 |
| 5sealed | 141 | Hu, Haibing (1697) | Won 2-1 | +211557 |
| 6sealed | 60 | Abronson, Jordan (1561) | Lost 1-2 | -181539 |
| 7sealed | 89 | Wright, Troy (1519) | Lost 1-2 | -181521 |
| top | average opponent: 1563record: 4-3 | new rating: 1521 | ||
| Grand Prix Daytona Beach 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 72 | Dyke, Matthew (1500) | Won 2-0 | +181518 |
| 2sealed | 55 | Cordell, Robbie (1480) | Lost 0-2 | -191499 |
| 3sealed | 133 | Magby, Mike (1590) | Won 2-1 | +201519 |
| 4sealed | 196 | Schildt, Ahren (1483) | Lost 0-2 | -191500 |
| 5sealed | 171 | Folwell, Robert A (1500) | Won 2-0 | +181518 |
| 6sealed | 157 | Gilbert, Chantry D (1465) | Draw 1-1 | -11517 |
| 7sealed | 135 | Lopez, Michael [DOM] (1520) | Lost 1-2 | -181499 |
| top | average opponent: 1505record: 3-3-1 | new rating: 1499 | ||