Yamamoto, Masayuki
Current rating: 1496
Record: 19-20-1
| Grand Prix Yokohama 2019 (modern) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 295 | Komine, Syunsuke (1429) | Won 2-0 | +171528 |
| 2modern | 453 | Carey, Gene (1539) | Won 2-1 | +181546 |
| 3modern | 435 | Kagoi, Yuki (1371) | Lost 0-2 | -211525 |
| 4modern | 679 | Je, Sungeun (1723) | Lost 1-2 | -141511 |
| 5modern | 652 | Shibata, Syouhei (1496) | Won 2-0 | +171528 |
| 6modern | 574 | Yokoyama, Shohei (1691) | Lost 1-2 | -151513 |
| 7modern | 546 | Marumo, Tsubasa (1541) | Lost 1-2 | -171496 |
| top | average opponent: 1541record: 3-4 | new rating: 1496 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 460 | Ishiduka, Katuya (1400) | Won 2-0 | +171452 |
| 2modern | 80 | Ito, Ken (1675) | Won 2-0 | +221474 |
| 3modern | 260 | Tatsumi, Kouji (1621) | Won 2-0 | +211495 |
| 4modern | 94 | Ootachi, Makoto (1504) | Won 2-1 | +181513 |
| 5modern | 164 | Itou, Makoto (1543) | Lost 0-2 | -171496 |
| 6modern | 269 | Nunotani, Kousuke (1522) | Won 2-0 | +181514 |
| 7modern | 66 | Tsubouchi, Tomoya (1714) | Lost 0-2 | -141500 |
| 8modern | 222 | Honda, Atsuo (1702) | Won 2-0 | +211521 |
| 9modern | 136 | Oginuma, Kiichi (1546) | Won 2-0 | +191540 |
| 10modern | 170 | Aitken, William (1727) | Lost 1-2 | -151525 |
| 11modern | 272 | Nomura, Hidehiro (1758) | Lost 1-2 | -141511 |
| top | average opponent: 1610record: 7-4 | new rating: 1511 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 17 | Takamura, Kazuki (1500) | Lost 0-2 | -181475 |
| 2sealed | 345 | Takahashi, Jun (1376) | Lost 1-2 | -201455 |
| 3sealed | 538 | Oda, Ryota (1486) | Draw 1-1 | 01455 |
| 4sealed | 514 | Iwaki, Jun (1434) | Lost 0-2 | -181437 |
| 5sealed | 455 | Shinzawa, Tomohiro (1498) | Won 2-1 | +191456 |
| 6sealed | 378 | Mcfeely, Jeff (1479) | Won 2-0 | +191475 |
| 7sealed | 294 | Hatano, Yoshiya (1432) | Lost 0-2 | -191456 |
| 8sealed | 232 | Abe, Masahide (1300) | Lost 1-2 | -211435 |
| top | average opponent: 1438record: 2-5-1 | new rating: 1435 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 918 | Tomita, Tokunori (1500) | Won 2-1 | +181516 |
| 2sealed | 700 | Yamano, Tatsuto (1247) | Lost 1-2 | -231493 |
| 3sealed | 887 | Kamada, Masahiro (1542) | Lost 1-2 | -171476 |
| 4sealed | 1034 | Furihara, Kazuki (1448) | Won 2-0 | +181494 |
| 5sealed | 987 | Nakano, Akinori (1448) | Lost 0-2 | -191475 |
| 6sealed | 980 | Wada, Yuuichirou (1480) | Won 2-0 | +181493 |
| 7sealed | 903 | Hanyuu, Kento (1464) | Won 2-1 | +171510 |
| 8sealed | 1016 | Satou, Wataru (1519) | Lost 1-2 | -171493 |
| top | average opponent: 1456record: 4-4 | new rating: 1493 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 206 | Hamada, Kouji (1500) | Won 2-0 | +181518 |
| 2standard | 331 | ozaki, ryou (1518) | Lost 0-2 | -181500 |
| 3standard | 527 | Satou, Masaya (1500) | Won 2-1 | +181518 |
| 4standard | 537 | Hatou, Yoshikazu (1499) | Lost 0-2 | -181500 |
| 5standard | 618 | Nagashima, Asuka (1483) | Lost 0-2 | -191481 |
| 6standard | 597 | Yamamoto, Yuusuke (1412) | Won 2-1 | +171498 |
| top | average opponent: 1485record: 3-3 | new rating: 1498 | ||