Shiba, Joutarou
Current rating: 1361
Record: 17-30-4
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1382 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 90 | Kawakami, Takumi (1481) | Won 2-0 | +191401 |
| 2sealed | 507 | Fukuoka, Soichiro (1518) | Lost 1-2 | -151386 |
| 3sealed | 714 | Hirashima, Yutaro (1570) | Lost 1-2 | -151371 |
| 4sealed | 946 | Neo, You Wei (1456) | Lost 0-1 | -171354 |
| 5sealed | 989 | Yoshimura, Yu (1459) | Won 2-1 | +201374 |
| 6sealed | 782 | Matsumoto, Masataka (1638) | Lost 0-2 | -131361 |
| top | average opponent: 1520record: 2-4 | new rating: 1361 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1379 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 7 | Yamauchi, Takashi (1412) | Lost 0-2 | -181361 |
| 4modern | 867 | Yoshihara, Tomoki (1555) | Lost 0-2 | -141347 |
| 5modern | 910 | Kwanchaitunya, Sakditat (1677) | Won 2-0 | +241371 |
| 6modern | 473 | Tanaka, Masataka (1488) | Lost 1-2 | -161355 |
| 7modern | 858 | Hasegawa, Eita (1534) | Won 2-1 | +211376 |
| 8modern | 590 | Ooike, Rinsei (1470) | Won 2-0 | +201396 |
| 9modern | 506 | Kato, Satoshi (1613) | Lost 1-2 | -141382 |
| top | average opponent: 1535record: 3-4 | new rating: 1382 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 293 | Koseki, Daisuke (1576) | Lost 1-2 | -151430 |
| 2standard | 990 | Takayama, Kiichiro (1482) | Lost 0-2 | -171413 |
| 3standard | 1447 | Takahashi, Yuuki (1474) | Lost 0-2 | -171396 |
| 5standard | 1498 | Yanagi, Yuichi (1462) | Lost 0-2 | -171379 |
| top | average opponent: 1498record: 0-4 | new rating: 1379 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1442 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 769 | Yoshida, Masashi (1458) | Won 2-1 | +181460 |
| 2standard | 105 | Abiko, Haduki (1462) | Draw 1-1 | 01460 |
| 3standard | 593 | Cheng, Timothy (1687) | Lost 0-2 | -141446 |
| 4standard | 828 | Kawada, Hiroyuki (1385) | Draw 1-1 | -11445 |
| top | average opponent: 1498record: 1-1-2 | new rating: 1445 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1388 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 636 | Satou, Tomoyuki (1500) | Won 2-1 | +201408 |
| 2sealed | 665 | Saijo, Yuichi (1495) | Won 2-0 | +191427 |
| 3sealed | 784 | Hirashima, Yutaro (1536) | Won 2-0 | +201447 |
| 4sealed | 645 | Matsuda, Issui (1743) | Draw 1-1 | +51452 |
| 5sealed | 662 | Shigehara, Toshinori (1740) | Lost 0-2 | -121440 |
| 6sealed | 745 | Sugiura, Takuya (1470) | Won 2-0 | +181458 |
| 7sealed | 685 | Abe, Yuya (1555) | Lost 1-2 | -161442 |
| top | average opponent: 1577record: 4-2-1 | new rating: 1442 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1436 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 986 | Akita, Takumi (1500) | Lost 0-2 | -171419 |
| 2modern | 1076 | Nishio, Yasuhiro (1482) | Draw 1-1 | +11420 |
| 3modern | 1160 | Nakaoka, Koshiro (1567) | Lost 1-2 | -151405 |
| 4modern | 1212 | Takahori, Jun (1446) | Lost 0-2 | -171388 |
| top | average opponent: 1499record: 0-3-1 | new rating: 1388 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1441 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 711 | Andou, Koutarou (1680) | Won 2-0 | +231464 |
| 2sealed | 644 | Harada, Daisaku (1627) | Lost 0-2 | -161448 |
| 3sealed | 835 | Murata, Kouji (1513) | Won 2-0 | +201468 |
| 4sealed | 649 | Furukawa, Kazuya (1623) | Lost 0-2 | -161452 |
| 5sealed | 706 | Babasaki, Taro (1533) | Lost 1-2 | -161436 |
| top | average opponent: 1595record: 2-3 | new rating: 1436 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1476 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 269 | Ando, Koyo (1543) | Lost 0-2 | -171459 |
| 2modern | 542 | Fujimoto, Satoru (1482) | Lost 0-2 | -171442 |
| 3modern | 655 | Nagao, Takuya (1419) | Won 2-0 | +171459 |
| 4modern | 640 | Takawashi, Kenji (1464) | Lost 1-2 | -181441 |
| top | average opponent: 1477record: 1-3 | new rating: 1441 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 278 | Hill, Anthony (1555) | Won 2-1 | +201487 |
| 2sealed | 201 | Kanehira, Haruki (1487) | Won 2-0 | +181505 |
| 3sealed | 49 | Hattori, Yutaka (1503) | Lost 0-1 | -191486 |
| 4sealed | 313 | Takebayashi, Tomo (1793) | Won 2-1 | +241510 |
| 5sealed | 219 | Kobayashi, Tatsurou (1540) | Lost 0-2 | -181492 |
| 6sealed | 274 | Makino, Yuuichi (1573) | Lost 0-2 | -161476 |
| top | average opponent: 1575record: 3-3 | new rating: 1476 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 155 | Yasuda, Seita (1554) | Won 2-0 | +191519 |
| 2extended | 96 | Takahashi, Teo (1437) | Lost 0-2 | -201499 |
| 3extended | 229 | Oosaki, Masakazu (1322) | Lost 1-2 | -211478 |
| 4extended | 270 | Takagi, Takayuki (1859) | Lost 0-2 | -111467 |
| top | average opponent: 1543record: 1-3 | new rating: 1467 | ||