Ortiz, Jason
Current rating: 1586
| Grand Prix Toronto 2006 (DIS limited) | starting rating: 1575 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 96 | Cadorette, Simon (1523) | Lost 0-2 | -191556 |
| 3sealed | 102 | Morozov, Kirill (1501) | Won 2-0 | +171573 |
| 4sealed | 126 | Hoffmann, Matthew (1544) | Lost 0-2 | -191554 |
| 5sealed | 145 | Simms, Matthew (1504) | Won 2-0 | +171571 |
| 6sealed | 108 | Foley, Mike (1529) | Won 2-0 | +181589 |
| 7sealed | 71 | Aiken, Paul T (1540) | Won 2-1 | +171606 |
| 8sealed | 58 | Dos Remedios, Aaron (1539) | Lost 0-2 | -201586 |
| top | average opponent: 1526record: 4-3 | new rating: 1586 | ||
| Grand Prix Philadelphia 2005 (legacy) | starting rating: 1615 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 52 | Cheng, Vincent (1518) | Lost 0-2 | -201595 |
| 3legacy | 149 | Yong, Peter (1451) | Lost 1-2 | -201575 |
| top | average opponent: 1485record: 0-2 | new rating: 1575 | ||
| Grand Prix Boston 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 45 | McGregor, Sean (1523) | Won 2-0 | +181518 |
| 2extended | 53 | Simoneau, Danny R (1518) | Won 2-0 | +181536 |
| 3extended | 77 | Corbeels, Jeffrey (1500) | Won 2-0 | +181554 |
| 4extended | 40 | Caliguiri, Frank (1500) | Won 2-0 | +171571 |
| 5extended | 28 | Blaha, Michael (1522) | Won 2-0 | +171588 |
| 6extended | 15 | Pettingill, Christopher (1538) | Won 2-0 | +171605 |
| 7extended | 5 | Chow, Vincent (1596) | Lost 0-2 | -181587 |
| 8extended | 23 | Duval, Jeffrey (1760) | Won 2-0 | +211608 |
| 9extended | 17 | souza, justin (1617) | Lost 0-2 | -181590 |
| 10extended | 27 | Stewart, Edward (1541) | Lost 0-2 | -191571 |
| 11extended | 25 | Johnson, Ian (1608) | Won 2-0 | +191590 |
| 12extended | 23 | McGregor, Duncan (1586) | Won 2-1 | +181608 |
| 13extended | 15 | Bridy, Dan (1710) | Won 2-0 | +201628 |
| 14extended | 10 | Sonne, Jonathan (1933) | Lost 0-2 | -131615 |
| 15extended | 14 | Lynch, Brian (1722) | ID | 01615 |
| top | average opponent: 1612record: 10-4-1 | new rating: 1615 | ||