Yamamoto, Yasutaka
Current rating: 1515
Record: 4-3
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 33 | Yagi, Areji (1500) | Lost 1-2 | -181482 |
| 2standard | 818 | Maruyama, Hiromu (1484) | Won 2-1 | +181500 |
| 3standard | 660 | Okada, Koji (1503) | Won 2-0 | +181518 |
| 4standard | 623 | Shimazu, Yoshiki (1545) | Lost 0-2 | -171501 |
| 5standard | 769 | Muraoka, Hideaki (1347) | Won 2-1 | +151516 |
| 6standard | 515 | Ishikawa, Ryosuke (1508) | Won 2-1 | +181534 |
| 7standard | 474 | Matsunami, Shohei (1503) | Lost 0-2 | -191515 |
| average opponent: 1484record: 4-3 | new rating: 1515 | |||