Ortiz, Giovanni
Current rating: 1537
Record: 16-14
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 313 | Brodeur, John (1521) | Lost 1-2 | -191557 |
| 2legacy | 424 | Gitlin, Jason (1482) | Lost 1-2 | -201537 |
| top | average opponent: 1502record: 0-2 | new rating: 1537 | ||
| Grand Prix Pittsburgh 2011 (M12 standard) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 160 | Finch, Kevin (1518) | Won 2-0 | +171597 |
| 3standard | 151 | Henkes, Ben (1484) | Won 2-1 | +161613 |
| 4standard | 49 | Floch, Ivan (1978) | Lost 0-2 | -121601 |
| 5standard | 143 | Lenkner, Marcus A (1521) | Lost 1-2 | -201581 |
| 6standard | 259 | Nisthal, Daniel (1506) | Won 2-0 | +171598 |
| 7standard | 243 | Bhagat, Zohar (1643) | Won 2-1 | +191617 |
| 8standard | 183 | Anderson, James D (1512) | Lost 0-2 | -201597 |
| 9standard | 186 | Echavarria, Carlos (1411) | Lost 0-2 | -211576 |
| top | average opponent: 1571record: 4-4 | new rating: 1576 | ||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 136 | An, Kevin (1468) | Lost 0-2 | -191499 |
| 4block | 169 | Cruz, Kristian Ryan (1517) | Won 2-0 | +181517 |
| 5block | 181 | Schock, Rosco (1494) | Won 2-0 | +181535 |
| 6block | 120 | Purcha, Stephane (1668) | Won 2-0 | +201555 |
| 7block | 46 | Frac, Robert (1547) | Won 2-0 | +181573 |
| 8block | 31 | Plourde, Jason (1566) | Won 2-1 | +181591 |
| 9block | 15 | Gribble, Dylon (1618) | Lost 1-2 | -181573 |
| 10block | 24 | Pazona, Jon (1581) | Won 2-1 | +191592 |
| 11block | 25 | Davis, John (1665) | Lost 0-2 | -171575 |
| 12block | 33 | Trachtenberg, Yosef (1656) | Won 2-0 | +191594 |
| 13block | 22 | Douglass, Morgan (1777) | Lost 0-2 | -141580 |
| 14block | 43 | Olson, Matthew (1591) | Won 2-1 | +181598 |
| 15block | 29 | Lecky, Alex (1589) | Lost 0-2 | -181580 |
| top | average opponent: 1595record: 8-5 | new rating: 1580 | ||
| Grand Prix Philadelphia 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 110 | Gregg, Tony E (1500) | Lost 1-2 | -181482 |
| 2sealed | 183 | Resso, George (1482) | Won 2-0 | +181500 |
| 3sealed | 184 | Ferraro, Matt (1500) | Won 2-0 | +181518 |
| 4sealed | 125 | Benson, Alex (1466) | Lost 1-2 | -191499 |
| 5sealed | 180 | Krug, Josh (1499) | Won 2-1 | +181517 |
| 6sealed | 106 | McElhinney, Sean (1553) | Won 2-0 | +191536 |
| 7sealed | 68 | ignacio, Charles (1539) | Lost 1-2 | -181518 |
| top | average opponent: 1506record: 4-3 | new rating: 1518 | ||