Tsubokura, Hirotada
Current rating: 1482
Record: 7-8
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1474 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 350 | Ishii, Takeshi (1616) | Won 2-1 | +211495 |
| 2sealed | 74 | Maki, Yoshihito (1484) | Won 2-0 | +181513 |
| 3sealed | 121 | Mutou, Kazuki (1634) | Lost 1-2 | -161497 |
| 4sealed | 171 | Sakuragi, Jun (1488) | Won 2-0 | +181515 |
| 5sealed | 228 | Kinugasa, Satoshi (1699) | Lost 1-2 | -151500 |
| 6sealed | 253 | Saito, Rinshiro (1517) | Lost 0-2 | -181482 |
| average opponent: 1573record: 3-3 | new rating: 1482 | |||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 232 | Nakazawa, Yusuke (1500) | Lost 0-2 | -181482 |
| 2standard | 289 | Hitoshi T., (1482) | Lost 1-2 | -181464 |
| 3standard | 318 | Tsunemoto, Makoto (1398) | Won 2-0 | +171481 |
| 4standard | 305 | Hama, Kirito (1466) | Won 2-1 | +181499 |
| 5standard | 257 | Itou, Takanori (1525) | Lost 1-2 | -181481 |
| 6standard | 259 | Oosaki, Masakazu (1316) | Lost 1-2 | -211460 |
| 7standard | 242 | Murata, Kouji (1427) | Lost 0-2 | -191441 |
| 8standard | 205 | Yamasaki, Sadaharu (1272) | Won 2-0 | +151456 |
| 9standard | 166 | Muto, Masaharu (1460) | Won 2-1 | +181474 |
| average opponent: 1427record: 4-5 | new rating: 1474 | |||