Isowa, Masaomi
Current rating: 1497
Record: 3-3
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 58 | Oonishi, Tomokazu (1485) | Lost 0-2 | -181482 |
| 2sealed | 408 | Suda, Kazuho (1487) | Won 2-0 | +181500 |
| 3sealed | 408 | Kishida, Hirokazu (1599) | Lost 1-2 | -161484 |
| 4sealed | 414 | Itou, Masahito (1454) | Won 2-1 | +171501 |
| 5sealed | 387 | Kisanuki, Akira (1407) | Won 2-0 | +161517 |
| 6sealed | 217 | Mori, Syuuichi (1400) | Lost 0-2 | -201497 |
| average opponent: 1472record: 3-3 | new rating: 1497 | |||