Yamashita, Kouhei
Current rating: 1489
Record: 28-30-1
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 350 | Koyanagi, Takashi (1594) | Lost 1-2 | -161486 |
| 2standard | 476 | Kato, Akinori (1442) | Won 2-0 | +171503 |
| 3standard | 493 | Nakatani, Tomoya (1502) | Won 2-0 | +181521 |
| 4standard | 318 | Iwanaga, Koki (1656) | Lost 1-2 | -161505 |
| 5standard | 674 | Ohashi, Gaku (1610) | Lost 0-2 | -161489 |
| top | average opponent: 1561record: 2-3 | new rating: 1489 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 200 | Narushima, Yuusuke (1500) | Won 2-0 | +181532 |
| 2sealed | 534 | Adachi, Naohiko (1594) | Lost 0-2 | -171515 |
| 3sealed | 794 | Kawakami, Kazuto (1793) | Lost 0-2 | -131502 |
| top | average opponent: 1629record: 1-2 | new rating: 1502 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 724 | Kase, Masahito (1499) | Won 2-1 | +171559 |
| 2legacy | 670 | Fujiyoshi, Manabu (1533) | Lost 0-2 | -181541 |
| 3legacy | 743 | Yomura, Syuuta (1502) | Lost 1-2 | -191522 |
| 4legacy | 862 | Todate, Shoutarou (1487) | Won 2-1 | +181540 |
| 5legacy | 774 | Yamauchi, Youta (1401) | Lost 1-2 | -211519 |
| 6legacy | 861 | Ueda, Hiroyuki (1484) | Lost 0-2 | -191500 |
| 7legacy | 818 | Katamine, Kentarou (1417) | Lost 0-2 | -191481 |
| 8legacy | 769 | Matsumata, Syusaku (1371) | Won 2-0 | +161497 |
| 9legacy | 721 | Saito, Yuki (1457) | Won 2-0 | +171514 |
| top | average opponent: 1461record: 4-5 | new rating: 1514 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 278 | Iwao, Takashi (1483) | Won 2-0 | +181542 |
| 2modern | 261 | Nakatani, Haruki (1819) | Lost 0-2 | -131529 |
| 3modern | 563 | Suzuki, Masaya (1500) | Won 2-0 | +171546 |
| 4modern | 359 | Murae, Ryuji (1525) | Lost 0-2 | -181528 |
| 5modern | 338 | Amano, Hidehiko (1487) | Lost 0-2 | -191509 |
| 6modern | 508 | Kira, Ryouichi (1468) | Won 2-0 | +171526 |
| 7modern | 333 | Kobayashi, Joutarou (1515) | Draw 1-1 | 01526 |
| 8modern | 317 | Ushima, Kousuke (1430) | Won 2-0 | +161542 |
| top | average opponent: 1528record: 4-3-1 | new rating: 1542 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 115 | Ishii, Taisuke (1915) | Lost 1-2 | -111499 |
| 5standard | 162 | Fujimoto, Tomoya (1534) | Won 2-0 | +181517 |
| 6standard | 36 | Itou, Masahiro (1531) | Won 2-1 | +191536 |
| 7standard | 58 | Wachi, Shinya (1705) | Won 2-0 | +211557 |
| 8standard | 25 | Takasugi, Ryouta (1766) | Lost 1-2 | -141543 |
| 9standard | 73 | Morikawa, Youhei (1534) | Lost 1-2 | -191524 |
| top | average opponent: 1664record: 3-3 | new rating: 1524 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 312 | Hayasaki, Yusuke (1555) | Lost 0-0 | -171514 |
| 2sealed | 189 | Yokoyama, Mitsunori (1401) | Won 2-1 | +161530 |
| 3sealed | 101 | Sekine, Kiyotaka (1429) | Lost 0-2 | -201510 |
| top | average opponent: 1462record: 1-2 | new rating: 1510 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 209 | Fujino, Kousin (1516) | Won 2-0 | +171567 |
| 3block | 28 | Izumiya, Yoshiaki (1523) | Lost 0-2 | -181549 |
| 4block | 136 | Imagawa, Hiromasa (1710) | Lost 1-2 | -151534 |
| 5block | 262 | Kumagai, Hiroaki (1443) | Lost 1-2 | -201514 |
| 6block | 252 | Hatanaka, Kengo (1479) | Won 2-0 | +171531 |
| top | average opponent: 1534record: 2-3 | new rating: 1531 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 86 | Hasegawa, Hironobu (1565) | Won 2-1 | +181571 |
| 2standard | 205 | Kuno, Tomoyuki (1518) | Lost 1-2 | -191552 |
| 3standard | 283 | Kobayashi, Tatsuumi (1499) | Won 2-1 | +171569 |
| 4standard | 134 | Takagi, Takayuki (1519) | Lost 1-2 | -191550 |
| top | average opponent: 1525record: 2-2 | new rating: 1550 | ||
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 111 | Shoji, Kenta (1566) | Lost 0-2 | -171484 |
| 2sealed | 124 | Satou, Kouya (1483) | Won 2-1 | +181502 |
| 3sealed | 52 | Takahashi, Yousuke (1500) | Won 2-0 | +181520 |
| 4sealed | 79 | Mayuzumi, Shinichi (1539) | Won 2-0 | +191539 |
| 5sealed | 60 | Matousek, Pavel (1796) | Lost 0-2 | -141525 |
| 6sealed | 72 | Yabuki, Shunichi (1517) | Won 2-1 | +181543 |
| 7sealed | 51 | Ootsuka, Koutarou (1758) | Won 2-0 | +221565 |
| 8sealed | 38 | Fujita, Osamu (1897) | Lost 1-2 | -121553 |
| top | average opponent: 1632record: 5-3 | new rating: 1553 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 114 | Nakazuka, Yuuki (1523) | Won 2-0 | +181518 |
| 3standard | 158 | Kitamura, Kensuke (1430) | Won 2-1 | +171535 |
| 4standard | 82 | Tsukiyama, Tomokazu (1538) | Won 2-1 | +181553 |
| 5standard | 16 | Kawamura, Akihiro (1551) | Lost 0-2 | -181535 |
| 6standard | 88 | Shiba, Norihito (1461) | Lost 0-2 | -191516 |
| 7standard | 187 | Koyano, Hirofumi (1543) | Lost 1-2 | -181498 |
| 8standard | 165 | Sasagawa, Tomohide (1639) | Lost 0-2 | -151483 |
| 9standard | 172 | Hisaki, Yuu (1508) | Won 2-0 | +181501 |
| top | average opponent: 1524record: 4-4 | new rating: 1501 | ||