Ishizuka, Shoji
Current rating: 1565
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 818 | Suzuki, Katsumasa (1500) | Lost 1-2 | -191537 |
| 2sealed | 903 | Hsin, Michael (1484) | Won 2-0 | +171554 |
| 3sealed | 965 | Ikeda, Hiroaki (1434) | Won 2-1 | +161570 |
| 4sealed | 843 | Li, Qing (1387) | Won 2-0 | +151585 |
| 5sealed | 712 | Kawaguchi, Sena (1536) | Lost 0-2 | -191566 |
| 6sealed | 801 | Kurosaki, Ryo (1526) | Won 2-1 | +171583 |
| 7sealed | 751 | Osa, Tomoki (1556) | Lost 0-2 | -181565 |
| top | average opponent: 1489record: 4-3 | new rating: 1565 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 158 | Yamada, Yuta (1443) | Lost 0-2 | -201542 |
| 2sealed | 325 | Yoshizawa, Kaoru (1480) | Won 2-1 | +171559 |
| 3sealed | 307 | Morisane, Hitoshi (1539) | Lost 0-2 | -181541 |
| 4sealed | 349 | Shiwaku, Tsuyoshi (1716) | Lost 0-2 | -151526 |
| 5sealed | 345 | Takechi, Takumi (1465) | Won 2-1 | +171543 |
| 6sealed | 288 | Toshida, Shin'ichi (1448) | Won 2-0 | +161559 |
| 7sealed | 201 | Watanabe, Yoshiaki (1489) | Won 2-0 | +171576 |
| 8sealed | 179 | Kondo, Masahiro (1509) | Lost 0-2 | -201556 |
| top | average opponent: 1511record: 4-4 | new rating: 1556 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 7 | Yamamoto, Yohei (1500) | Won 2-1 | +181518 |
| 2standard | 182 | Igarashi, Yasunori (1517) | Lost 0-2 | -181500 |
| 3standard | 270 | Hattori, Kazuki (1584) | Won 2-0 | +201520 |
| 4standard | 196 | Ehara, Makoto (1515) | Won 2-0 | +171537 |
| 5standard | 94 | Yamaguchi, Satoshi (1887) | Lost 0-2 | -111526 |
| 6standard | 253 | Kanagawa, Takuya (1499) | Won 2-1 | +171543 |
| 7standard | 175 | Tachibana, Kentarou (1504) | Won 2-0 | +171560 |
| 8standard | 118 | Hitomi, Masaaki (1621) | Won 2-0 | +191579 |
| 9standard | 195 | Tanaka, Kazuhiko (1503) | Won 2-0 | +171596 |
| 10standard | 76 | Suzuki, Shuho (1602) | Lost 0-2 | -181578 |
| 11standard | 105 | Wada, Yuki (1790) | Lost 1-2 | -141564 |
| 12standard | 94 | Hasegawa, Kazuhiko3707 (1543) | Lost 0-2 | -181546 |
| 13standard | 99 | Itou, Masayoshi (1539) | Won 2-0 | +171563 |
| 14standard | 90 | Yamao, Kazuhito (1513) | Lost 1-2 | -181545 |
| 15standard | 99 | Yamada, Toshihiro (1528) | Won 2-0 | +171562 |
| top | average opponent: 1576record: 9-6 | new rating: 1562 | ||