maruyama, masatada
Current rating: 1448
Record: 0-3
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 159 | Furukawa, Ken'ichi (1583) | Lost 1-2 | -161484 |
| 2sealed | 246 | Iwase, Akira (1482) | Lost 0-2 | -181466 |
| 3sealed | 280 | Ida, Tomoaki (1520) | Lost 1-2 | -181448 |
| average opponent: 1529record: 0-3 | new rating: 1448 | |||