Tsuda, Junichi
Current rating: 1616
Record: 41-37-1
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 256 | Yun, Hyun-Jun (1500) | Lost 0-2 | -201566 |
| 2sealed | 414 | Fujii, Ami (1481) | Won 2-1 | +171583 |
| 3sealed | 339 | Umemoto, Ryouta (1463) | Won 2-0 | +161599 |
| 4sealed | 290 | Zhao, Tianyu (1497) | Lost 1-2 | -201579 |
| 5sealed | 257 | Hatou, Yoshikazu (1538) | Won 2-0 | +171596 |
| 6sealed | 238 | Yashiro, Hitoshi (1517) | Won 2-1 | +171613 |
| 7sealed | 190 | Katsubayashi, Nobuhisa (1661) | Won 2-0 | +191632 |
| 8sealed | 243 | Momose, Kazuyuki (1778) | Lost 0-2 | -161616 |
| top | average opponent: 1554record: 5-3 | new rating: 1616 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 143 | Atsumi, Takafumi (1500) | Won 2-1 | +171577 |
| 2standard | 199 | Hata, Hiromi (1500) | Won 2-1 | +161593 |
| 3standard | 106 | Takahashi, Tomoyuki (1519) | Lost 1-2 | -191574 |
| 4standard | 231 | Siao, G. Shung (1585) | Won 2-1 | +181592 |
| 5standard | 96 | Mitsui, Hideo (1417) | Won 2-1 | +151607 |
| 6standard | 67 | Omori, Ken'ichirou (1565) | Lost 0-2 | -191588 |
| 7standard | 213 | Fujioka, Takuya (1490) | Lost 0-2 | -201568 |
| 8standard | 86 | Ehara, Yoshihide (1553) | Won 2-1 | +181586 |
| top | average opponent: 1516record: 5-3 | new rating: 1586 | ||
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 32 | Maekawa, Takuya (1480) | Draw 1-1 | 01499 |
| 2sealed | 86 | Motonaga, Hiroaki (1466) | Won 2-1 | +171516 |
| 3sealed | 48 | Maki, Koichiro (1812) | Lost 1-2 | -131503 |
| 4sealed | 114 | Hirose, Tatsuya (1500) | Won 2-1 | +181521 |
| 5sealed | 84 | Saito, Hirotsugu (1519) | Won 2-0 | +181539 |
| 6sealed | 57 | Itagaki, Masayoshi (1604) | Lost 0-2 | -171522 |
| 7sealed | 76 | Rita, Takayuki (1546) | Won 2-0 | +191541 |
| 8sealed | 59 | Hayashi, Hiroki (1586) | Won 2-1 | +191560 |
| top | average opponent: 1564record: 5-2-1 | new rating: 1560 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 89 | Tanaka, Yoshinori (1517) | Lost 1-2 | -171464 |
| 2sealed | 127 | Aoyama, Katsuhiko (1467) | Won 2-0 | +181482 |
| 3sealed | 113 | Shimada, Masatake (1606) | Lost 0-2 | -161466 |
| 4sealed | 172 | Yoshida, Mitsutaka (1252) | Won 2-1 | +151481 |
| 5sealed | 114 | Nakao, Munenari (1498) | Won 2-0 | +181499 |
| 6sealed | 96 | Honda, Masaya (1469) | Won 2-1 | +171516 |
| 7sealed | 1 | Maruyama, Takaaki (1551) | Lost 1-2 | -171499 |
| top | average opponent: 1480record: 4-3 | new rating: 1499 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 58 | Yasuda, Takuo (1500) | Won 2-0 | +181497 |
| 2sealed | 139 | Takagi, Hitoshi (1518) | Lost 0-2 | -171480 |
| 3sealed | 140 | Yamada, Tomotaro (1500) | Won 2-0 | +181498 |
| 4sealed | 197 | Watanabe, Yukitsugu (1490) | Lost 1-2 | -181480 |
| 5sealed | 200 | Okazaki, Yoshihiko (1503) | Won 2-1 | +181498 |
| 6sealed | 157 | Yasunaka, Ryouhei (1508) | Lost 1-2 | -181480 |
| 7sealed | 141 | Kozakai, Ryouhei (1501) | Won 2-0 | +191499 |
| 8sealed | 23 | Oks, Oliver (1534) | Lost 0-2 | -181481 |
| top | average opponent: 1507record: 4-4 | new rating: 1481 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 132 | Natsume, Seishiro (1472) | Lost 0-2 | -191499 |
| 2standard | 378 | Otsubo, Kyohei (1482) | Won 2-1 | +171516 |
| 3standard | 241 | Inou, Kazuhiro (1500) | Lost 0-2 | -181498 |
| 4standard | 373 | Suzuki, Ryuuichi (1430) | Lost 1-2 | -191479 |
| top | average opponent: 1471record: 1-3 | new rating: 1479 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 34 | Suzuki, Yuichi (1494) | Lost 1-2 | -181471 |
| 3sealed | 121 | Haga, Katsuhiro (1503) | Won 2-0 | +191490 |
| 4sealed | 74 | Iwai, Tsuyoshi (1661) | Lost 1-2 | -151475 |
| 5sealed | 172 | Yasuda, Takeshi (1539) | Won 2-0 | +191494 |
| 6sealed | 95 | Hasegawa, Tomokazu (1521) | Won 2-0 | +191513 |
| 7sealed | 62 | Fuma, Masaharu (1666) | Won 2-1 | +201533 |
| 8sealed | 64 | Yoshikawa, Yuusuke (1651) | Lost 0-2 | -151518 |
| top | average opponent: 1576record: 4-3 | new rating: 1518 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 88 | Kondou, Shin (1500) | Won 2-0 | +191447 |
| 2sealed | 35 | Hirosawa, Yuuta (1643) | Won 2-1 | +221469 |
| 3sealed | 84 | Yasufuku, Akihiro (1542) | Lost 0-2 | -171452 |
| 4sealed | 140 | Nakamura, Hiroya (1488) | Won 2-0 | +191471 |
| 5sealed | 116 | Chikusa, Shinya (1539) | Won 2-1 | +191490 |
| 6sealed | 27 | Kikuchi, Hiroshi (1671) | Won 2-0 | +211511 |
| 7sealed | 33 | Mitamura, Kazuya (1663) | Won 2-0 | +211532 |
| 8sealed | 11 | Sasaki, Yusuke (Tokyo) (1520) | ID | 01532 |
| 9rochester | 18 | Kitano, Tetsuya (1640) | Lost 1-2 | -161516 |
| 10rochester | 3 | Nakano, Yoshitaka (1717) | Lost 1-2 | -141502 |
| 12rochester | 5 | Asahina, Yohei (1582) | Lost 0-2 | -171485 |
| 13rochester | 8 | Mochizuki, Shinichiro (1543) | Won 2-0 | +191504 |
| 14rochester | 25 | Okada, Kou (1666) | Lost 0-2 | -151489 |
| top | average opponent: 1593record: 7-5-1 | new rating: 1489 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 63 | Ueno, Mitsuru (1491) | Won 2-0 | +191434 |
| 2sealed | 63 | Takayama, Kenta (1518) | Lost 1-2 | -161418 |
| 3sealed | 191 | Inoue, Junichi (1537) | Lost 0-2 | -161402 |
| 4sealed | 213 | Morikawa, Yoshimi (1356) | Won 2-0 | +171419 |
| 5sealed | 179 | Adachi, Takatsugu (1621) | Won 2-1 | +221441 |
| 6sealed | 94 | Nakano, Yoshitaka (1754) | Lost 0-2 | -131428 |
| top | average opponent: 1546record: 3-3 | new rating: 1428 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 155 | Iioka, Kenta (1381) | Lost 0-2 | -191427 |
| 2sealed | 301 | Ura, Tsuyoshi (1535) | Lost 0-2 | -161411 |
| 3sealed | 315 | Kimura, Toshiyuki (1464) | Lost 1-2 | -171394 |
| 4sealed | 293 | Kanno, Fumihiro (1446) | Won 2-0 | +191413 |
| 5sealed | 231 | Yokoyama, Tatsuya (1463) | Won 2-0 | +191432 |
| 6sealed | 178 | Kamei, Toru (1481) | Lost 1-2 | -171415 |
| top | average opponent: 1462record: 2-4 | new rating: 1415 | ||
| Grand Prix Sendai 2001 (extended) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 68 | Yamazaki, Nobutoshi (1500) | Lost 0-2 | -181446 |
| top | record: 0-1 | new rating: 1446 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 194 | Kuroda, Ryouhei (1500) | Won 2-1 | +181518 |
| 2block | 129 | Hiraishi, Tomohide (1518) | Lost 0-2 | -181500 |
| 3block | 389 | Oomori, Kazuki (1473) | Lost 1-2 | -181482 |
| 4block | 571 | Uchihara, Arato (1482) | Lost 1-2 | -181464 |
| top | average opponent: 1493record: 1-3 | new rating: 1464 | ||