Petrozza, Michael
Current rating: 1462
Record: 7-9
| Grand Prix Orlando 2012 (ISD standard) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 111 | Jacobelli, Chad (1500) | Lost 0-2 | -181461 |
| 2standard | 257 | Fisher, Kristopher (1482) | Lost 1-2 | -181443 |
| 3standard | 387 | West, Eric (1433) | Lost 1-2 | -181425 |
| 4standard | 432 | Reuter, George (1446) | Won 2-0 | +191444 |
| 5standard | 404 | Walker, Bryan (1446) | Won 2-1 | +181462 |
| 6standard | 328 | Kinney, Michael (1464) | Lost 0-2 | -181444 |
| 7standard | 296 | Bieringer, Michael (1462) | Won 2-0 | +181462 |
| average opponent: 1462record: 3-4 | new rating: 1462 | |||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 490 | Harding, Kiley (1500) | Won 2-1 | +181518 |
| 2extended | 463 | Sesit, Brad (1518) | Lost 0-2 | -181500 |
| 3extended | 547 | Pease, Joe M (1500) | Lost 1-2 | -181482 |
| 4extended | 613 | Beety, John Dale (1402) | Won 2-1 | +171499 |
| 5extended | 608 | Hoang, Khai (1502) | Lost 1-2 | -181481 |
| 6extended | 611 | Dearolf, Chance C (1419) | Won 2-1 | +171498 |
| 7extended | 551 | Thompson, Adam N (1501) | Won 2-1 | +181516 |
| 8extended | 506 | Odom, Gabriel (1462) | Lost 1-2 | -191497 |
| 9extended | 484 | Neumann, Zach (1504) | Lost 1-2 | -181479 |
| average opponent: 1479record: 4-5 | new rating: 1479 | |||