Rubinstein, Iz
Current rating: 1517
Record: 7-7-1
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 307 | Fox, Adam H (1611) | Lost 0-2 | -151452 |
| 2sealed | 283 | Alvarez, David (1419) | Lost 0-2 | -191433 |
| 3sealed | 484 | Watkins, Steven (1685) | Won 2-0 | +231456 |
| 4sealed | 388 | Hind, Stephen (1550) | Won 2-0 | +191475 |
| 5sealed | 346 | Otto, Rachel (1369) | Won 2-1 | +171492 |
| 6sealed | 37 | Schuh, Gina (1518) | Won 2-1 | +181510 |
| 7sealed | 183 | Sahebjam, David (1602) | Lost 1-2 | -161494 |
| 8sealed | 226 | Wolloch, Sam (1652) | Won 2-1 | +211515 |
| 9sealed | 153 | Biaggi, Andrea (1629) | Draw 1-1 | +21517 |
| average opponent: 1560record: 5-3-1 | new rating: 1517 | |||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 752 | Sicilia, Brian (1500) | Won 0-0 | +181518 |
| 2sealed | 574 | Potts, John (1518) | Won 2-0 | +181536 |
| 3sealed | 638 | Badillo, Rogelio (1544) | Lost 1-2 | -181518 |
| 4sealed | 693 | Corrigan, Griffin (1592) | Lost 0-2 | -171501 |
| 5sealed | 737 | Samson, Daniel (1638) | Lost 0-2 | -151486 |
| 6sealed | 813 | Parsons, David W (1446) | Lost 0-2 | -191467 |
| average opponent: 1540record: 2-4 | new rating: 1467 | |||