Yamamoto, Yuuichirou
Current rating: 1608
Record: 14-13-1 (GP) / 10-8 (professional)
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1575 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 84 | Okuda, Masateru (1568) | Won 2-1 | +181593 |
| 3sealed | 183 | Tagomori, Shou (1601) | Won 2-0 | +181611 |
| 4sealed | 56 | Watanabe, Yasunari (1555) | Won 2-0 | +171628 |
| 5sealed | 42 | Ohno, Isao (1675) | Won 2-1 | +191647 |
| 6sealed | 11 | Aoyanagi, Toshihiko (1553) | Won 2-1 | +161663 |
| 7sealed | 6 | Calcano, Christian (1704) | Lost 0-2 | -171646 |
| 8sealed | 145 | Hayashi, Shouya (1611) | Lost 1-2 | -191627 |
| 9sealed | 239 | Nagasaki, Ryou (1566) | Lost 0-2 | -191608 |
| top | average opponent: 1604record: 5-3 | new rating: 1608 | ||
| 2011 World Championship (mixed) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 94 | Camargo, Marcus (1500) | Lost 0-2 | -181470 |
| 2standard | 187 | Anderson, Joseph F (1429) | Won 2-0 | +171487 |
| 3standard | 77 | Severin, Thoralf (1812) | Lost 1-2 | -121475 |
| 4standard | 154 | Goovaerts, Raf (1785) | Won 2-1 | +231498 |
| 5standard | 75 | Cedeno, Francisco (1515) | Lost 0-1 | -171481 |
| 6standard | 132 | Kim, Sang-eun (1504) | Lost 0-2 | -181463 |
| 7draft | 52 | Boggemes, Kyle (1590) | Won 2-1 | +201483 |
| 8draft | 73 | Horig, Wilfy (1678) | Lost 1-2 | -141469 |
| 9draft | 159 | Heigerer, Stefan (1631) | Lost 1-2 | -151454 |
| 10draft | 131 | Lybaert, Marijn (1782) | Won 2-1 | +231477 |
| 11draft | 6 | Parez, Julien (1720) | Won 2-1 | +231500 |
| 12draft | 103 | Tabler, Michael (1616) | Won 2-0 | +201520 |
| 13modern | 106 | Ashwal, Shalom (1581) | Won 2-1 | +191539 |
| 14modern | 64 | Friedman, Ben (1810) | Won 2-1 | +231562 |
| 15modern | 59 | Chung, Jason (1756) | Won 2-0 | +211583 |
| 16modern | 48 | Soorani, Shaheen (1879) | Lost 0-2 | -121571 |
| 17modern | 69 | Kane, Christopher (1593) | Lost 1-2 | -181553 |
| 18modern | 78 | Nagy, Tamas (1780) | Won 2-0 | +221575 |
| top | average opponent: 1664record: 10-8 | new rating: 1575 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 25 | Ohzawa, Kazuyoshi (1486) | Lost 1-2 | -181500 |
| 4standard | 203 | Sugiyama, Yuya (1692) | Won 2-0 | +211521 |
| 5standard | 101 | Kunisato, Ebie (1662) | Lost 1-2 | -151506 |
| 6standard | 165 | Mizuno, Kunihiko (1503) | Lost 0-2 | -181488 |
| top | average opponent: 1586record: 1-3 | new rating: 1488 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 120 | Nakagawa, Shinichi (1498) | Lost 1-2 | -191521 |
| 2standard | 239 | Fujita, Toshitake (1509) | Lost 1-2 | -181503 |
| 3standard | 340 | Orii, Toshiyuki (1463) | Won 2-0 | +171520 |
| 4standard | 345 | Arakawa, Yasuaki (1570) | Won 2-0 | +191539 |
| 5standard | 222 | Konno, Eiji (1499) | Won 2-0 | +171556 |
| 6standard | 188 | Iwasawa, Fumiya (1506) | Lost 0-2 | -191537 |
| 7standard | 255 | Watanabe, Masaki (1472) | Lost 1-2 | -191518 |
| top | average opponent: 1502record: 3-4 | new rating: 1518 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 95 | Murayama, Yoshiyuki (1568) | Draw 1-1 | +11501 |
| 2standard | 224 | Satou, Rin (1500) | Lost 1-2 | -181483 |
| 3standard | 314 | Takeuchi, Ryota (1468) | Won 2-0 | +181501 |
| 4standard | 247 | Shiga, Takasi (1504) | Won 2-0 | +181519 |
| 5standard | 164 | Watanabe, Hirokazu (1499) | Won 2-0 | +181537 |
| 6standard | 119 | Fukasawa, Taichi (1536) | Won 2-1 | +181555 |
| 7standard | 124 | Sato, Rei (1744) | Won 2-1 | +211576 |
| 8standard | 73 | Matsumura, Hideyuki (1563) | Lost 1-2 | -181558 |
| 9standard | 181 | Itou, Kouei (1557) | Lost 0-2 | -181540 |
| top | average opponent: 1549record: 5-3-1 | new rating: 1540 | ||