Yamazaki, Takahiro
Current rating: 1441
Record: 16-21-2
| Grand Prix Yokohama 2010 (extended) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 345 | Moriya, Daisuke (1625) | Lost 0-2 | -151413 |
| 2extended | 433 | Machida, Takatoshi (1417) | Won 2-0 | +181431 |
| 3extended | 187 | Yamada, Sintarou (1613) | Won 2-0 | +221453 |
| 4extended | 286 | Kitamura, Kazuhide (1518) | Lost 1-2 | -171436 |
| 5extended | 239 | Shinohara, Kazuaki (1414) | Won 2-0 | +171453 |
| 6extended | 194 | Yokozawa, Naoya (1504) | Lost 0-2 | -171436 |
| 7extended | 229 | Miura, Shintaro (1500) | Won 2-0 | +201456 |
| 8extended | 168 | Kawakami, Hiroshi (1666) | Lost 0-2 | -151441 |
| top | average opponent: 1532record: 4-4 | new rating: 1441 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 13 | Kaida, Hiroshi (1530) | Won 2-1 | +191479 |
| 2extended | 34 | Suzumura, Tatsurou (1372) | Lost 0-2 | -191460 |
| 3extended | 108 | Gotou, Hiroaki (1651) | Lost 0-2 | -151445 |
| 4extended | 233 | Imamura, Taichirou (1487) | Lost 0-2 | -171428 |
| top | average opponent: 1510record: 1-3 | new rating: 1428 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1429 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 26 | Nishiura, Kazuhiro (1500) | Won 2-0 | +191448 |
| 2block | 41 | Matsushita, Masakazu (1714) | Won 2-1 | +231471 |
| 3block | 22 | Omonishi, Kojiro (1520) | Lost 0-2 | -171454 |
| 4block | 149 | Naka, Keiji (1520) | Won 2-1 | +191473 |
| 5block | 136 | Hashizume, Yuuya (1537) | Lost 1-2 | -171456 |
| 6block | 127 | Okamoto, Masahiro (1612) | Lost 1-2 | -151441 |
| 7block | 206 | Matsuo, Yoshiyuki (1514) | Won 2-0 | +191460 |
| top | average opponent: 1560record: 4-3 | new rating: 1460 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1442 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 124 | Kuroda, Jun'ichirou (1500) | Won 2-0 | +191461 |
| 2sealed | 79 | Moriya, Jun (1506) | Lost 1-2 | -171444 |
| 3sealed | 115 | Yamane, Masahiro (1507) | Won 2-1 | +191463 |
| 4sealed | 71 | Ozaki, Youichirou (1493) | Lost 0-2 | -171446 |
| 5sealed | 102 | Takahashi, Jun ya (1486) | Lost 1-2 | -171429 |
| top | average opponent: 1498record: 2-3 | new rating: 1429 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 74 | Kime, Shingo (1500) | Lost 0-2 | -181499 |
| 2sealed | 208 | Mitani, Shinya (1463) | Lost 0-2 | -191480 |
| 3sealed | 272 | Nakanishi, Eiji (1465) | Won 2-0 | +181498 |
| 4sealed | 253 | Muranaka, Nobutoshi (1464) | Lost 1-2 | -191479 |
| 5sealed | 240 | Horiguchi, Toru (1470) | Lost 0-2 | -181461 |
| 6sealed | 211 | Sumitomo, Hiroyuki (1449) | Lost 0-2 | -181443 |
| 7sealed | 180 | Nakagawa, Hiroki (1429) | Lost 0-2 | -181425 |
| 8sealed | 82 | Nakayama, Takashi (1407) | Won 2-0 | +171442 |
| top | average opponent: 1456record: 2-6 | new rating: 1442 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 328 | Hamawaki, Yusaku (1500) | Lost 1-2 | -181482 |
| 3block | 422 | Yamamoto, Toshihiko (1500) | Won 1-0 | +181500 |
| 4block | 355 | Nakano, Satoshi (1436) | Won 2-0 | +171517 |
| 5block | 231 | Takeuchi, Hidehito (1518) | Draw 1-1 | 01517 |
| 6block | 162 | Fukui, Hiroyuki (1503) | Draw 1-1 | 01517 |
| 7block | 251 | Iwasaki, Yoshitaka (1518) | Won 2-0 | +181535 |
| 8block | 168 | Tanaka, Hiroshi (1554) | Lost 0-1 | -181517 |
| top | average opponent: 1504record: 3-2-2 | new rating: 1517 | ||