Shiba, Yoshimasa
Current rating: 1524
Record: 34-35-5
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 2pioneer | 247 | Nakazawa, Yusuke (1388) | Lost 0-2 | -211505 |
| 3pioneer | 480 | Oohashi, Toshiyuki (1698) | Lost 0-2 | -141491 |
| 4pioneer | 732 | Terashima, Hitoshi (1482) | Lost 1-2 | -181473 |
| 5pioneer | 711 | Yamamoto, Jun (1514) | Won 2-1 | +191492 |
| 6pioneer | 623 | Kubo, Yuya (1378) | Draw 1-1 | -31489 |
| 7pioneer | 491 | Sugimoto, Shimpei (1455) | Won 2-0 | +181507 |
| 8pioneer | 362 | Hashimoto, Satoshi 6288 (1439) | Won 2-0 | +171524 |
| top | average opponent: 1479record: 3-3-1 | new rating: 1524 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 372 | Kokubu, Yusuke (1699) | Draw 1-1 | +31544 |
| 4standard | 234 | Itou, Masahiro1014 (1401) | Lost 0-2 | -211523 |
| 5standard | 429 | Matsuoka, Kenshi (1558) | Draw 1-1 | +11524 |
| 7standard | 398 | Wada, Kazumasa (1696) | Won 2-1 | +211545 |
| 8standard | 269 | Haruta, Takatsugu (1487) | Lost 0-2 | -191526 |
| top | average opponent: 1568record: 1-2-2 | new rating: 1526 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 432 | Fujita, Yuya (1514) | Won 2-1 | +181506 |
| 2standard | 461 | Uno, Yuta (1467) | Lost 0-2 | -191487 |
| 3standard | 587 | Hosokawa, Takahiro (1311) | Won 2-0 | +151502 |
| 4standard | 516 | Yamakawa, Hiroaki (1550) | Lost 1-2 | -171485 |
| 5standard | 603 | Naono, Shuichi (1396) | Won 2-1 | +171502 |
| 6standard | 600 | Ma, Noah (1812) | Won 2-1 | +231525 |
| 7standard | 371 | Matsuzaki, Eiji (1476) | Won 2-0 | +171542 |
| 8standard | 189 | Nishikawa, Suguru (1482) | Draw 1-1 | -11541 |
| top | average opponent: 1501record: 5-2-1 | new rating: 1541 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 749 | Furukawa, Syun6268 (1455) | Lost 0-2 | -181444 |
| 2standard | 767 | Kashima, Yuuki (1566) | Won 2-0 | +201464 |
| 3standard | 935 | Nakajima, Shuhei (1500) | Lost 1-2 | -171447 |
| 4standard | 894 | Yoshikawa, Takuma (1495) | Lost 0-2 | -171430 |
| 5standard | 927 | Nakanishi, Kota (1370) | Won 2-1 | +171447 |
| 6standard | 767 | Harumoto, Takashi (1482) | Won 2-0 | +191466 |
| 7standard | 619 | Itou, Tomoya (1554) | Won 2-0 | +191485 |
| 8standard | 519 | Kato, Jun (1628) | Draw 1-1 | +31488 |
| top | average opponent: 1506record: 4-3-1 | new rating: 1488 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 458 | Furuya, Satoshi (1191) | Lost 1-2 | -251555 |
| 3sealed | 686 | Seki, Kazuhiko (1547) | Lost 1-2 | -181537 |
| 4sealed | 1020 | Tanaka, Hitoshi (1481) | Won 2-1 | +171554 |
| 5sealed | 762 | Blanc, Regis (1564) | Lost 1-2 | -181536 |
| 6sealed | 952 | Shibata, Hirotaka (1632) | Lost 1-2 | -161520 |
| 7sealed | 858 | Sakai, Daichi (1451) | Lost 0-2 | -191501 |
| 8sealed | 801 | Hiraoka, Shigenori (1428) | Lost 0-2 | -191482 |
| 9sealed | 694 | Shiina, Daisuke (1412) | Lost 0-2 | -201462 |
| top | average opponent: 1463record: 1-7 | new rating: 1462 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 424 | Zhou, Zhiqi (1533) | Won 2-0 | +181560 |
| 3modern | 156 | Hung, Hsun Hao (1703) | Won 2-0 | +201580 |
| 4modern | 336 | Furusato, Hiroshi (1612) | Won 2-0 | +191599 |
| 5modern | 95 | Arita, Kazuhiro (1465) | Lost 1-2 | -201579 |
| 6modern | 311 | Carlos, Aaron (1630) | Won 2-0 | +181597 |
| 7modern | 223 | Fukui, Keisuke (1497) | Won 2-1 | +171614 |
| 8modern | 93 | Yasunaka, Shinichi (1567) | Won 2-0 | +171631 |
| 9modern | 51 | Kometani, Yuki (1576) | Lost 1-2 | -191612 |
| 10modern | 130 | Harada, Daisaku (1580) | Lost 0-2 | -191593 |
| 11modern | 273 | Kajihara, Koji (1611) | Won 2-0 | +191612 |
| 12modern | 173 | Takaishi, Yuuri (1628) | Lost 1-2 | -181594 |
| 13modern | 205 | Itagaki, Yota (1501) | Won 2-1 | +161610 |
| 14modern | 115 | Sunada, Shougo (1790) | Lost 1-2 | -151595 |
| 15modern | 160 | Hayata, Akira (1753) | Lost 1-2 | -151580 |
| top | average opponent: 1603record: 8-6 | new rating: 1580 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 465 | Xiao, Han (1793) | Won 2-1 | +231523 |
| 4standard | 7 | Yao, Shunsuke (1662) | Lost 0-2 | -151508 |
| 5standard | 216 | Mori, Takeshi (1670) | Won 2-1 | +211529 |
| 6standard | 322 | Suzuki, Akira (1627) | Won 2-1 | +201549 |
| 7standard | 181 | Fujimura, Kazuaki (1905) | Lost 1-2 | -121537 |
| 8standard | 324 | Kamiharai, Toshihito (1499) | Won 2-0 | +171554 |
| 9standard | 261 | Okuno, Ryohei (1521) | Lost 1-2 | -181536 |
| 10standard | 409 | Ishii, Masashi (1443) | Won 2-0 | +161552 |
| 11standard | 251 | Shiozu, Ryouma (1792) | Won 2-0 | +221574 |
| 12standard | 99 | Saitou, Yuusuke (1580) | Lost 0-2 | -181556 |
| 13standard | 156 | Maurri, Filippo (1790) | Lost 0-2 | -141542 |
| 14standard | 250 | Kase, Koichi (1524) | Won 2-0 | +181560 |
| 15standard | 149 | Yamada, Yosuke (1554) | Lost 1-2 | -181542 |
| top | average opponent: 1643record: 7-6 | new rating: 1542 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 2 | Toyoda, Ryosuke (1538) | Won 2-1 | +201486 |
| 2standard | 372 | Li, Chi (1645) | Won 2-0 | +211507 |
| 3standard | 417 | Son, Kii (1645) | Won 2-0 | +201527 |
| 4standard | 191 | Tsuchiya, Hideaki (1847) | Lost 1-2 | -121515 |
| 5standard | 518 | Araki, Shota (1506) | Lost 0-2 | -181497 |
| 6standard | 675 | Mitachi, Yuuki (1451) | Lost 1-2 | -191478 |
| 7standard | 707 | Miyazono, Takeshi (1775) | Won 2-1 | +231501 |
| 8standard | 515 | Ahn, Seongbeom (1484) | Won 2-1 | +181519 |
| 9standard | 258 | Noine, Kazuhiro (1489) | Lost 0-2 | -191500 |
| top | average opponent: 1598record: 5-4 | new rating: 1500 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 299 | Sakai, Toshinori (1585) | Lost 0-2 | -161484 |
| 2sealed | 435 | Sugisawa, Daiki (1529) | Lost 1-2 | -181466 |
| top | average opponent: 1557record: 0-2 | new rating: 1466 | ||