Ishihara, Masayuki
Current rating: 1395
Record: 13-21
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1385 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 461 | Igarashi, Takuma (1524) | Won 2-1 | +211406 |
| 2standard | 154 | Yamagata, Hiroki (1517) | Won 2-0 | +201426 |
| 3standard | 306 | Watanabe, Takeshi (1484) | Lost 1-2 | -171409 |
| 4standard | 663 | Aoki, Ryoya (1564) | Won 2-1 | +201429 |
| 5standard | 379 | Maruoka, Tatsuya (1540) | Won 2-0 | +201449 |
| 6standard | 221 | Kawaguchi, Tetsu (1685) | Lost 0-2 | -131436 |
| 7standard | 489 | Okabe, Gaku (1527) | Won 2-1 | +191455 |
| 8standard | 169 | Robertson, Chris (1586) | Won 2-0 | +211476 |
| 9standard | 212 | Matsushita, Junnya (1712) | Lost 1-2 | -141462 |
| 10standard | 315 | Mutou, Masaya (1549) | Lost 1-2 | -161446 |
| 11standard | 386 | Tsuda, Seiya (1520) | Won 2-1 | +191465 |
| 12standard | 289 | Shibata, Yasumasa (1356) | Lost 1-2 | -201445 |
| 13standard | 271 | Nukita, Yosuke (1518) | Lost 0-2 | -171428 |
| 14standard | 297 | Morita, Masayuki (1430) | Lost 1-2 | -181410 |
| 15standard | 284 | Isayama, Yusuke (1558) | Lost 0-2 | -151395 |
| top | average opponent: 1538record: 7-8 | new rating: 1395 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1441 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 514 | Yamashita, Yoshiki (1506) | Lost 0-2 | -171424 |
| 4legacy | 420 | Tomomura, Hitoshi (2031) | Won 2-1 | +281452 |
| 5legacy | 340 | Yamashita, Masanori (1485) | Lost 1-2 | -171435 |
| 6legacy | 400 | Wada, Kousuke (1501) | Lost 1-2 | -171418 |
| 7legacy | 643 | Prusa, Adam (1505) | Lost 1-2 | -161402 |
| 8legacy | 727 | Tsuruta, Takurou (1478) | Lost 0-2 | -171385 |
| top | average opponent: 1584record: 1-5 | new rating: 1385 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 851 | Watanabe, Keita (1564) | Lost 0-2 | -171478 |
| 2standard | 1194 | Shinya, Takeshi (1482) | Won 2-0 | +181496 |
| 3standard | 995 | Takehana, Yuki (1469) | Won 2-1 | +181514 |
| 4standard | 543 | Yamashita, Yoshiki (1485) | Lost 0-2 | -191495 |
| 5standard | 801 | Kamo, Keisuke (1537) | Lost 1-2 | -171478 |
| 6standard | 1226 | Kasai, Takahide (1403) | Lost 1-2 | -191459 |
| 7standard | 1222 | Ito, Kazuma (1497) | Lost 0-2 | -181441 |
| top | average opponent: 1491record: 2-5 | new rating: 1441 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 360 | Yamashita, Yoshiki (1500) | Lost 0-2 | -181482 |
| 2standard | 632 | Iwasaki, Akira (1389) | Won 2-0 | +161498 |
| 3standard | 863 | Tanaka, Tomonori (1409) | Won 2-0 | +171515 |
| 4standard | 338 | Nose, Shunsuke (1440) | Won 2-0 | +161531 |
| 5standard | 313 | Nisi, Ryota (1533) | Lost 1-2 | -181513 |
| 6standard | 605 | Moriyama, Yuu (1485) | Lost 0-2 | -181495 |
| top | average opponent: 1459record: 3-3 | new rating: 1495 | ||