Yokoyama, Shigehisa
Current rating: 1569
Record: 22-16
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1595 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 73 | Ota, Masatoshi (1500) | Lost 0-2 | -201575 |
| 2standard | 394 | Fujimura, Akinori (1500) | Lost 0-2 | -191556 |
| 3standard | 528 | Furutani, Yamato (1466) | Won 2-1 | +161572 |
| 4standard | 458 | Nakamura, Yuki (1487) | Won 2-0 | +171589 |
| 5standard | 397 | Uesugi, Fumiya (1489) | Lost 1-2 | -201569 |
| top | average opponent: 1488record: 2-3 | new rating: 1569 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1625 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 268 | Cortese, Alessandro (1500) | Lost 1-2 | -211604 |
| 2standard | 228 | Ishimura, Kenji (1483) | Won 2-0 | +161620 |
| 3standard | 241 | Ishikawa, Naoto (1493) | Won 2-0 | +161636 |
| 4standard | 168 | Sakaguchi, Naoki (1479) | Lost 1-2 | -211615 |
| 5standard | 238 | Takenaka, Yuuhi (1505) | Lost 1-2 | -201595 |
| top | average opponent: 1492record: 2-3 | new rating: 1595 | ||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 52 | Kunisaki, Yusuke (1500) | Won 2-0 | +161597 |
| 2sealed | 1 | Yamakawa, Youichirou (1560) | Lost 0-2 | -191578 |
| 3sealed | 140 | Fujishiro, Tomonori (1501) | Won 2-0 | +171595 |
| 4sealed | 69 | Ishimatsu, Takahiro (1481) | Lost 1-2 | -201575 |
| 5sealed | 108 | Fujii, Tomo (1499) | Won 2-1 | +171592 |
| 6sealed | 76 | Eto, Masaya (1517) | Won 2-1 | +161608 |
| 7sealed | 84 | Lee, Hyun Wook (1525) | Won 2-1 | +171625 |
| top | average opponent: 1512record: 5-2 | new rating: 1625 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 167 | Matsuoka, Tomohide (1500) | Lost 1-2 | -191534 |
| 2block | 454 | Kido, Satoshi (1482) | Won 2-1 | +171551 |
| 3block | 258 | Fukunaga, Norihiko (1500) | Won 2-0 | +181569 |
| 4block | 180 | Suzuki, Shirou (1517) | Won 2-0 | +171586 |
| 5block | 199 | Kadono, Satoru (1535) | Won 2-0 | +171603 |
| 6block | 142 | Okuno, Noriaki (1553) | Lost 1-2 | -191584 |
| 7block | 201 | Aya, Keisuke (1503) | Won 2-1 | +161600 |
| 8block | 119 | Shibuya, Tsutomu (1507) | Lost 1-2 | -191581 |
| top | average opponent: 1512record: 5-3 | new rating: 1581 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 120 | Kobayashi, Shigenori (1500) | Won 2-0 | +181518 |
| 2extended | 27 | Honma, Satoshi (1518) | Won 2-1 | +181536 |
| 3extended | 67 | Suzuoki, Ryou (1518) | Won 2-0 | +181554 |
| 4extended | 30 | Fujieda, Isamu (1500) | Won 2-1 | +171571 |
| 5extended | 14 | Momose, Kazuyuki (1666) | Lost 0-2 | -171554 |
| 6extended | 76 | Nakashiro, Mizuki (1553) | Won 2-1 | +181572 |
| 7extended | 14 | Nemoto, Takashi (1538) | Won 2-0 | +181590 |
| 8extended | 16 | Otani, Akiyuki (1589) | ID | 01590 |
| 9extended | 23 | Imamichi, Takashi (1589) | Lost 1-2 | -181572 |
| 10extended | 25 | Higashino, Masayuki (1615) | Lost 1-2 | -171555 |
| 11extended | 28 | Yanagawa, Tetsuji (1552) | Won 2-1 | +181573 |
| 12extended | 24 | Otani, Akiyuki (1571) | Lost 1-2 | -191554 |
| 13extended | 27 | Noda, Koji (1560) | Lost 1-2 | -171537 |
| 14extended | 29 | Sasaki, Yusuke (Tokyo) (1471) | Won 2-0 | +161553 |
| top | average opponent: 1553record: 8-5-1 | new rating: 1553 | ||