Kobayashi, Osamu
Current rating: 1511
Record: 2-2
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 198 | Goto, Kosuke (1658) | Won 2-0 | +211521 |
| 2sealed | 6 | Katayama, Hidenori (1727) | Lost 0-2 | -141507 |
| 3sealed | 301 | Mino, Tetsuya (1537) | Won 2-1 | +181525 |
| 4sealed | 244 | Moriya, Jun (1760) | Lost 1-2 | -141511 |
| average opponent: 1670record: 2-2 | new rating: 1511 | |||