Yamasaki, Yuuki
Current rating: 1396
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 109 | Yamagishi, Tetsuya (1527) | Lost 0-2 | -171430 |
| 2standard | 646 | Yamashita, Keijiro (1482) | Lost 0-2 | -171413 |
| 3standard | 1105 | Mihara, Yuki (1460) | Lost 0-2 | -171396 |
| 4standard | 1172 | Muramatsu, Yasuhiro (1214) | Lost 1-2 | -211375 |
| 5standard | 1088 | Hirami, Akihiro (1422) | Won 2-1 | +191394 |
| 6standard | 950 | Arai, Motoyuki (1448) | Won 2-1 | +191413 |
| 7standard | 772 | Yasuda, Takaaki (1468) | Lost 0-2 | -171396 |
| top | average opponent: 1432record: 2-5 | new rating: 1396 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 81 | Tanbo, Yoshiki (1500) | Won 2-0 | +181482 |
| 2extended | 127 | Shimada, Hiroya (1599) | Lost 0-2 | -161466 |
| 3extended | 143 | Satou, Rin (1502) | Lost 1-2 | -171449 |
| 4extended | 229 | Yurikusa, Nobuo (1483) | Won 2-0 | +191468 |
| 5extended | 157 | Takada, Ryo (1312) | Lost 0-2 | -211447 |
| top | average opponent: 1479record: 2-3 | new rating: 1447 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 90 | Kobayashi, Jyun (1500) | Lost 1-2 | -181482 |
| 2block | 279 | Aramoto, Ryousuke (1482) | Lost 1-2 | -181464 |
| 3block | 356 | Kato, Shinya (Saitama (1464) | Lost 0-2 | -181446 |
| 4block | 369 | Nishiura, Kazuhiro (1448) | Won 2-0 | +181464 |
| 5block | 311 | Hiroyuki, Takagi (1445) | Won 2-0 | +181482 |
| 6block | 267 | Sakata, Akinori (1482) | Lost 1-2 | -181464 |
| top | average opponent: 1470record: 2-4 | new rating: 1464 | ||