Mann, Zachary
Current rating: 1464
Record: 1-3
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 125 | Maestas, Jessica (1500) | Lost 1-2 | -181482 |
| 2block | 226 | Bastelman, Rodney (1481) | Won 2-0 | +181500 |
| 3block | 193 | Campusano, Eric (1492) | Lost 0-2 | -181482 |
| 4block | 280 | Koopman, Michel A (1482) | Lost 1-2 | -181464 |
| average opponent: 1489record: 1-3 | new rating: 1464 | |||