Ohtsuka, Youhei
Current rating: 1451
Record: 18-22
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 634 | Yamanouchi, Takanori (1420) | Lost 1-2 | -191446 |
| 2standard | 777 | Ueyama, Yuji (1485) | Lost 1-2 | -171429 |
| 3standard | 1235 | Ishikawa, Hayate (1465) | Won 2-0 | +191448 |
| 4standard | 1157 | Shibuya, Ryosuke (1499) | Won 2-0 | +191467 |
| 5standard | 816 | Taki, Masaya (1521) | Lost 0-2 | -171450 |
| 6standard | 907 | Saitou, Ippei (1549) | Won 2-0 | +201470 |
| 7standard | 912 | Ishigaki, Kiyotaka (1505) | Won 2-0 | +181488 |
| 8standard | 579 | Kobayashi, Yuki9366 (1481) | Lost 0-2 | -181470 |
| 9standard | 610 | Houjo, Chihiro (1387) | Lost 0-2 | -191451 |
| top | average opponent: 1479record: 4-5 | new rating: 1451 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1439 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 277 | Liu, Alex [USA] (1500) | Won 2-1 | +191458 |
| 2standard | 615 | Ito, Jin (1466) | Lost 0-2 | -181440 |
| 3standard | 889 | Hashizume, Keita (1500) | Lost 1-2 | -171423 |
| 4standard | 1268 | Morohashi, Ko (1486) | Won 2-0 | +201443 |
| 5standard | 1082 | Tanaka, Hiroto (1566) | Won 2-0 | +201463 |
| 6standard | 884 | Nakata, Tatsuya (1537) | Won 2-0 | +191482 |
| 7standard | 687 | Tada, Mitsuhiro (1543) | Lost 0-2 | -171465 |
| top | average opponent: 1514record: 4-3 | new rating: 1465 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2049 | Fujiwara, Ryuuichi (1449) | Won 2-0 | +171492 |
| 2sealed | 2187 | Sasaki, Tsuyoshi (1538) | Lost 0-2 | -171475 |
| 3sealed | 2221 | Hirohata, Syo (1440) | Lost 0-2 | -191456 |
| 4sealed | 2374 | Nakazawa, Yuuji (1490) | Lost 0-2 | -171439 |
| top | average opponent: 1479record: 1-3 | new rating: 1439 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 715 | Itou, Shougo (1706) | Lost 1-2 | -141470 |
| 3standard | 785 | Kato, Ryunosuke (1502) | Lost 1-2 | -181452 |
| 4standard | 825 | Abe, Yuuta (1505) | Won 2-0 | +191471 |
| 5standard | 730 | Hara, Yusuke (1556) | Won 2-1 | +201491 |
| 6standard | 704 | Kikuchi, Shou (1594) | Lost 0-2 | -161475 |
| top | average opponent: 1573record: 2-3 | new rating: 1475 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 164 | Mochiki, Kazuto (1490) | Lost 1-2 | -191524 |
| 2standard | 302 | Sonoda, Yosuke (1484) | Won 2-0 | +171541 |
| 3standard | 346 | Nakamura, Takatoshi (1681) | Won 2-1 | +211562 |
| 4standard | 347 | Tamura, Youhei (1507) | Lost 0-2 | -191543 |
| 5standard | 354 | Toda, Kouhei (1500) | Lost 0-2 | -191524 |
| 6standard | 392 | Yong, Jong (1446) | Lost 0-2 | -201504 |
| 7standard | 394 | Hirose, Daichi (1366) | Lost 0-2 | -201484 |
| top | average opponent: 1496record: 2-5 | new rating: 1484 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 978 | Kitajima, Ryoko (1445) | Won 2-1 | +171517 |
| 2sealed | 928 | Arimura, Yuuki (1518) | Won 2-0 | +181535 |
| 3sealed | 710 | Isogami, Kazuma (1574) | Won 2-1 | +191554 |
| 4sealed | 749 | Ozawa, Takeshi (1820) | Lost 0-2 | -141540 |
| 5sealed | 836 | Mcmillin, Sarah (1474) | Lost 0-2 | -191521 |
| 6sealed | 929 | Haba, Kazuhisa (1518) | Won 2-1 | +181539 |
| 7sealed | 766 | Pai, Bruce (1729) | Won 2-0 | +221561 |
| 8sealed | 928 | Arita, Hiroyuki (1562) | Lost 1-2 | -181543 |
| top | average opponent: 1580record: 5-3 | new rating: 1543 | ||