Obitsu, Youtarou
Current rating: 1784 (#2638)
Record: 46-28
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1746 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 224 | Takano, Natsuki (1528) | Won 2-0 | +141760 |
| 2sealed | 313 | Aota, Hidekazu (1486) | Won 2-0 | +131773 |
| 3sealed | 54 | Gondo, Kosuke (1623) | Won 2-1 | +151788 |
| 4sealed | 188 | Horie, Tooru (1762) | Won 2-1 | +181806 |
| 5sealed | 102 | Sciesinski, Marcin (1600) | Won 2-0 | +141820 |
| 6sealed | 6 | Yamamoto, Ryoichi (1679) | Lost 0-2 | -211799 |
| 7sealed | 57 | Oh, Young Seok (1714) | Won 2-0 | +171816 |
| 8sealed | 24 | Kochi, Daiki (1664) | Lost 0-2 | -211795 |
| 9sealed | 99 | Ito, Takayuki (1635) | Won 2-0 | +151810 |
| 10draft | 116 | Ikawa, Yoshihiko (2040) | Lost 0-2 | -141796 |
| 11draft | 117 | Miwa, Ryou (1728) | Won 2-0 | +171813 |
| 12draft | 20 | Shimoyama, Masatoshi (1656) | Lost 0-2 | -211792 |
| 13draft | 83 | Shiohata, Ryosuke (1587) | Won 2-1 | +141806 |
| 14draft | 71 | Saito, Tomohiro (1568) | Lost 1-2 | -221784 |
| top | average opponent: 1662record: 9-5 | new rating: 1784 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1711 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 534 | Watarai, Kohei (1482) | Won 2-0 | +141725 |
| 2sealed | 244 | Takase, Yusuke (1438) | Lost 1-2 | -231702 |
| 3sealed | 542 | Muto, Takeshi (1465) | Won 2-1 | +131715 |
| 4sealed | 605 | Kohagura, Masataka (1477) | Won 2-1 | +141729 |
| 5sealed | 355 | Iwabuchi, Sou (1486) | Won 2-0 | +141743 |
| 6sealed | 316 | Kimura, Tatsuhiro (1508) | Won 2-1 | +141757 |
| 7sealed | 135 | Sekine, Yoshinori (1527) | Won 2-0 | +131770 |
| 8sealed | 22 | Hayakawa, Naoki (1722) | Lost 0-2 | -181752 |
| 9sealed | 98 | Kumada, Keiichiro (1586) | Won 2-0 | +151767 |
| 10draft | 575 | Takahira, Shunsuke (1797) | Won 2-0 | +181785 |
| 11draft | 574 | Tezuka, Yuuki (1654) | Lost 1-2 | -201765 |
| 12draft | 575 | Funahashi, Shun (1646) | Lost 1-2 | -201745 |
| 13draft | 673 | Nakamura, Satoshi0186 (1734) | Won 2-1 | +171762 |
| 14draft | 649 | Horikoshi, Takayuki (1827) | Lost 1-2 | -161746 |
| top | average opponent: 1596record: 9-5 | new rating: 1746 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 221 | Kabeshita, Yoshito (1489) | Won 2-1 | +171570 |
| 2sealed | 480 | Niwa, Ryuuta (1523) | Won 2-1 | +171587 |
| 3sealed | 479 | Yanagawa, Tsubasa (1527) | Won 2-1 | +171604 |
| 4sealed | 206 | Hasegawa, Yuuhei (1539) | Won 2-1 | +171621 |
| 5sealed | 135 | Shinohara, Kazuaki (1651) | Won 2-0 | +191640 |
| 6sealed | 66 | Itou, Motoaki (1825) | Lost 0-2 | -151625 |
| 7sealed | 135 | Hirata, Koutatsu (1640) | Lost 1-2 | -181607 |
| 8sealed | 149 | Arikawa, Shuntarou (1558) | Lost 1-2 | -191588 |
| 9sealed | 330 | Kojima, Toshihiro (1312) | Won 2-0 | +131601 |
| 10draft | 372 | Shiota, Fumihiko (1759) | Won 2-0 | +211622 |
| 11draft | 71 | Oki, Hiroki (1548) | Won 2-1 | +171639 |
| 12draft | 285 | Ishikami, Naotaka (1658) | Won 2-1 | +181657 |
| 13draft | 25 | Kamoi, Ryo (1672) | Won 2-0 | +191676 |
| 14draft | 287 | Hayashi, Daisuke (1682) | Won 2-0 | +181694 |
| 15draft | 129 | Saito, Toru (1641) | Won 2-0 | +171711 |
| top | average opponent: 1602record: 12-3 | new rating: 1711 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 2161 | Koga, Ryuji (1478) | Won 2-0 | +171523 |
| 3sealed | 2042 | Uemura, Akihiro (1542) | Lost 0-2 | -181505 |
| 4sealed | 2303 | Yamashita, Yusuke (1515) | Won 2-0 | +191524 |
| 5sealed | 2059 | Suzuki, Ryuuichi (1582) | Lost 1-2 | -171507 |
| 6sealed | 2181 | Shirai, Shuto (1520) | Won 2-1 | +181525 |
| 7sealed | 2189 | Peng, Jianjia (1526) | Won 2-1 | +181543 |
| 8sealed | 2126 | Matsui, Hisataka (1812) | Won 2-1 | +231566 |
| 9sealed | 2035 | Soh, Joe (1892) | Lost 1-2 | -131553 |
| top | average opponent: 1608record: 5-3 | new rating: 1553 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 548 | Ishiguro, Satoshi0631 (1466) | Lost 1-2 | -191500 |
| 4standard | 661 | Maruno, Takaaki (1518) | Lost 1-2 | -171483 |
| 5standard | 781 | Tei, Shizen (1502) | Won 2-0 | +181501 |
| 6standard | 741 | Okamura, Kazuyoshi (1514) | Lost 1-2 | -181483 |
| 7standard | 734 | Horiuchi, Taisuke (1499) | Won 2-0 | +191502 |
| 8standard | 677 | Okada, Taro (1541) | Lost 1-2 | -181484 |
| 9standard | 781 | Chijimi, Keiichi (1670) | Won 2-0 | +221506 |
| top | average opponent: 1530record: 3-4 | new rating: 1506 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 41 | Furuya, Youhei (1611) | Won 2-0 | +191566 |
| 3standard | 65 | Nishikawa, Tomoya (1501) | Won 2-1 | +171583 |
| 4standard | 189 | Ishiguro, Satoshi (1657) | Lost 1-2 | -161567 |
| 5standard | 241 | Masuno, Ryosuke (1681) | Lost 1-2 | -161551 |
| 6standard | 455 | Mizuno, Nobuyoshi (1543) | Won 2-0 | +171568 |
| 7standard | 356 | Sugimura, Yoshiyasu (1533) | Lost 1-2 | -181550 |
| 8standard | 266 | Saito, Tomoharu (1908) | Lost 1-2 | -121538 |
| 9standard | 319 | Kanou, Takuya (1495) | Lost 1-2 | -191519 |
| top | average opponent: 1616record: 3-5 | new rating: 1519 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 309 | Hirata, Minoru (1638) | Won 2-1 | +211521 |
| 3modern | 97 | Yokoyama, Yoshihiro (1498) | Won 2-1 | +171538 |
| 4modern | 53 | Murase, Hiroshi (1762) | Won 2-1 | +221560 |
| 5modern | 36 | Kim, Cynic (1814) | Lost 1-2 | -131547 |
| 6modern | 183 | Hibino, Yasutaka (1626) | Won 2-0 | +191566 |
| 7modern | 109 | Hagiwara, Yuuta (1504) | Lost 0-2 | -191547 |
| 8modern | 175 | Ichikawa, Takayoshi (1595) | Won 2-1 | +191566 |
| 9modern | 94 | Uehara, Shinya (1529) | Lost 1-2 | -191547 |
| top | average opponent: 1621record: 5-3 | new rating: 1547 | ||