Osterman, Johnny
Current rating: 1446
Record: 0-3
| Grand Prix Florence 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 403 | Vera, Stefano (1500) | Lost 0-2 | -181482 |
| 2block | 482 | Guastini, Andrea (1483) | Lost 1-2 | -181464 |
| 3block | 516 | Reffo, Tiziano (1465) | Lost 0-2 | -181446 |
| average opponent: 1483record: 0-3 | new rating: 1446 | |||