Oosawa, Yuki
Current rating: 1383
Record: 18-25-1
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1396 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 304 | Seki, Kentaro (1655) | Lost 0-2 | -131383 |
| top | record: 0-1 | new rating: 1383 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1442 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 247 | Nishigchi, Hideki (1544) | Lost 1-2 | -161426 |
| 2sealed | 855 | Makita, Shuuichi (1525) | Lost 0-2 | -171409 |
| 3sealed | 1084 | Wouters, Robin (1491) | Lost 1-2 | -161393 |
| 4sealed | 1091 | Kawaguchi, Muneyoshi (1392) | Won 2-0 | +181411 |
| 5sealed | 1015 | Morita, Yo (1657) | Lost 0-2 | -141397 |
| 6sealed | 978 | Asami, Taiki (1450) | Lost 1-2 | -171380 |
| 7sealed | 905 | Inami, Yuuki (1276) | Lost 1-2 | -201360 |
| 8sealed | 811 | Shimoda, Akihiro (1292) | Won 2-1 | +171377 |
| 9sealed | 699 | Kawabata, Yuya (1426) | Won 2-1 | +191396 |
| top | average opponent: 1450record: 3-6 | new rating: 1396 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 47 | Qian, Ruting (1498) | Lost 1-2 | -171464 |
| 2legacy | 717 | Tsukanishi, Toshiyuki (1420) | Won 2-0 | +171481 |
| 3legacy | 671 | Miyake, Ryohei (1469) | Lost 1-2 | -181463 |
| 4legacy | 1023 | Otsuka, Yasumasa (1449) | Lost 0-2 | -191444 |
| 5legacy | 969 | Kitagawa, Yoshihiko (1466) | Draw 1-1 | +11445 |
| 6legacy | 1010 | Komizo, Kouichi (1225) | Won 2-0 | +141459 |
| 7legacy | 864 | Mine, Ryunosuke (1489) | Won 2-1 | +181477 |
| 8legacy | 703 | Mori, Hiroshi (1534) | Lost 0-2 | -171460 |
| 9legacy | 682 | Yoshikawa, Takuma (1423) | Lost 1-2 | -181442 |
| top | average opponent: 1441record: 3-5-1 | new rating: 1442 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 22 | Saitou, Yasutsugu (1484) | Won 2-0 | +181484 |
| 2sealed | 171 | Tutumi, Takuya (1519) | Lost 0-2 | -171467 |
| 3sealed | 330 | Kimura, Yusuke (1483) | Won 2-1 | +181485 |
| 4sealed | 307 | Houjo, Chihiro (1269) | Won 2-0 | +141499 |
| 5sealed | 214 | Higashimori, Kazunori (1515) | Lost 0-2 | -181481 |
| 6sealed | 273 | Kim, Min-Seok (1518) | Won 2-1 | +191500 |
| 7sealed | 180 | Yamakawa, Hiroaki (1448) | Won 2-1 | +171517 |
| 8sealed | 141 | Yoon, Sang-Woong (1666) | Won 2-1 | +211538 |
| 9sealed | 69 | Nakamura, Kouki (1412) | Won 2-0 | +151553 |
| 10draft | 95 | Yokomizo, Gouki (1402) | Lost 1-2 | -201533 |
| 11draft | 69 | Yashiro, Kazuki (1608) | Lost 0-2 | -171516 |
| 12draft | 7 | Kozaki, Yosuke (1544) | Lost 1-2 | -171499 |
| 13draft | 73 | Notake, Shozaburo (1542) | Lost 0-2 | -181481 |
| top | average opponent: 1493record: 7-6 | new rating: 1481 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 796 | Murakami, Akinori (1500) | Lost 1-2 | -181465 |
| 2legacy | 798 | Ochi, Takahiro (1503) | Won 2-1 | +191484 |
| 3legacy | 783 | Shi, Zhun (1466) | Won 2-0 | +181502 |
| 4legacy | 728 | Sudibyo, Chrisandi (1421) | Lost 1-2 | -201482 |
| 5legacy | 808 | Arai, Yuma (1501) | Lost 1-2 | -171465 |
| 6legacy | 843 | Jinno, Kaname (1399) | Won 2-1 | +171482 |
| 7legacy | 759 | Hasegawa, Shun-ya (1622) | Won 2-0 | +201502 |
| 8legacy | 653 | Takeda, Teruhisa (1463) | Lost 1-2 | -191483 |
| 9legacy | 691 | Shishikura, Masahiro (1497) | Lost 0-2 | -171466 |
| top | average opponent: 1486record: 4-5 | new rating: 1466 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 70 | Fujita, Gensho (1606) | Lost 0-2 | -161484 |
| 2sealed | 433 | Sato, Yutaro (1483) | Lost 1-2 | -181466 |
| 3sealed | 473 | Mori, Tatsuki (1426) | Won 2-1 | +171483 |
| top | average opponent: 1505record: 1-2 | new rating: 1483 | ||