Ishii, Atsuhito
Current rating: 1389
Record: 1-7
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 763 | Sawachi, Shun (1534) | Lost 1-2 | -171483 |
| 2sealed | 871 | Otsuka, Yohei (1516) | Lost 0-2 | -181465 |
| 3sealed | 1061 | Mimura, Yukihiro (1406) | Lost 0-2 | -191446 |
| 4sealed | 1094 | Andou, Masahito (1521) | Lost 0-2 | -161430 |
| 5sealed | 1020 | Kageyama, Taiki (1427) | Won 2-0 | +171447 |
| 6sealed | 878 | Shimura, Yasuhiko (1310) | Lost 0-2 | -201427 |
| 7sealed | 742 | Hisasaka, Yuta (1424) | Lost 0-2 | -181409 |
| 8sealed | 631 | Ogura, Shigeru (1318) | Lost 0-2 | -201389 |
| average opponent: 1432record: 1-7 | new rating: 1389 | |||