Toyama, Junichiro
Current rating: 1501
Record: 17-20
| Grand Prix Yokohama 2010 (extended) | starting rating: 1451 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 250 | Satou, Masataka (1462) | Won 2-0 | +181469 |
| 2extended | 225 | Ida, Takamasa (1472) | Won 2-0 | +181487 |
| 3extended | 61 | Sawade, Makoto (1550) | Lost 0-2 | -171470 |
| 4extended | 255 | Tomoe, Ginpei (1519) | Won 2-1 | +191489 |
| 5extended | 171 | Itou, Yusuke (1585) | Won 2-0 | +201509 |
| 6extended | 127 | Hosokawa, Yuya (1677) | Lost 0-2 | -151494 |
| 7extended | 124 | Watanabe, Kazuki (1611) | Won 2-1 | +201514 |
| 8extended | 47 | Takagi, Yui (1776) | Lost 1-2 | -131501 |
| top | average opponent: 1582record: 5-3 | new rating: 1501 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 58 | Senba, Kotaro (1678) | Won 2-0 | +231437 |
| 5sealed | 18 | Ikeda, Tsuyoshi (1799) | Lost 0-2 | -121425 |
| 6sealed | 82 | Ishikawa, Masayo (1674) | Lost 0-2 | -141411 |
| 7sealed | 114 | Okuda, Masateru (1473) | Won 2-1 | +201431 |
| 8sealed | 135 | Kimura, Syun (1558) | Won 2-1 | +201451 |
| top | average opponent: 1636record: 3-2 | new rating: 1451 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 228 | Kang, Sung Mook (1422) | Lost 1-2 | -181406 |
| 2block | 239 | Yoshida, Kouki (1509) | Lost 1-2 | -161390 |
| 3block | 317 | Mera, Kenichi (1373) | Won 2-1 | +181408 |
| 4block | 307 | Ueda, Shuji (1429) | Won 2-0 | +181426 |
| 5block | 214 | Fujii, Hajime (1491) | Won 2-1 | +191445 |
| 6block | 190 | Izumiya, Yoshiaki (1509) | Lost 1-2 | -161429 |
| 7block | 210 | Takeno, Shinichi (1503) | Lost 1-2 | -171412 |
| 8block | 185 | Ishihara, Susumu (1479) | Won 2-0 | +191431 |
| 9block | 151 | Miyasaka, Takeshi (1475) | Lost 1-2 | -171414 |
| top | average opponent: 1466record: 4-5 | new rating: 1414 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1432 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 15 | Yoshida, Taiki (1518) | Lost 0-2 | -161416 |
| 3extended | 106 | Kawai, Katsuya (1517) | Won 2-0 | +201436 |
| 4extended | 108 | Yokoi, Masaki (1602) | Won 2-1 | +211457 |
| 5extended | 74 | Kishimoto, Yuuichi (1496) | Lost 0-2 | -171440 |
| 6extended | 89 | Yano, Ryuji (1589) | Lost 1-2 | -161424 |
| top | average opponent: 1545record: 2-3 | new rating: 1424 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 21 | Nakamura, Hajime (1500) | Won 2-0 | +181482 |
| 3block | 115 | Yamaguchi, Teruyuki (1585) | Lost 0-2 | -161466 |
| 4block | 177 | Iyanaga, Junya (1500) | Lost 1-2 | -171449 |
| 5block | 261 | Tanaka, Jun'ichi (1429) | Lost 1-2 | -181431 |
| 6block | 288 | Gunji, Toshiyuki (1484) | Won 2-1 | +191450 |
| 7block | 195 | Wada, Tomohiro (1500) | Lost 0-2 | -181432 |
| top | average opponent: 1500record: 2-4 | new rating: 1432 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 94 | Harada, Shuhei (1500) | Lost 0-2 | -181482 |
| 2sealed | 289 | Ueno, Mitsuru (1472) | Lost 0-2 | -181464 |
| 3sealed | 304 | Nakashima, Yasuhiro (1464) | Lost 0-2 | -181446 |
| 4sealed | 294 | Higuchi, Katsuhiro (1446) | Won 2-0 | +181464 |
| top | average opponent: 1470record: 1-3 | new rating: 1464 | ||