Sone, Keiichi
Current rating: 1461
Record: 1-3
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 60 | Momose, Ryo (1466) | Won 2-0 | +171517 |
| 2modern | 68 | Morita, Masayuki (1402) | Lost 0-2 | -201497 |
| 3modern | 462 | Itou, Hirokazu (Shizuoka) (1500) | Lost 1-2 | -181479 |
| 4modern | 508 | Obata, Shiou (1468) | Lost 0-2 | -181461 |
| average opponent: 1459record: 1-3 | new rating: 1461 | |||