Rosenblum, Sam
Current rating: 1502
Record: 2-2-1
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 108 | Pallone, Eric P (1560) | Won 2-0 | +191519 |
| 2block | 148 | Kossonogi, Ori (1570) | Won 2-0 | +191538 |
| 3block | 3 | Edelson, Steve (1515) | Lost 0-2 | -181520 |
| 4block | 174 | Rubin, Rafi (1517) | Draw 1-1 | 01520 |
| 5block | 142 | Shatford, Walter T (1518) | Lost 0-2 | -181502 |
| average opponent: 1536record: 2-2-1 | new rating: 1502 | |||