Iwabuchi, Tomohiro
Current rating: 1504
Record: 3-3
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 602 | Ishii, Masashi (1357) | Lost 1-2 | -211479 |
| 2sealed | 859 | Noguchi, Masahiko (1478) | Lost 0-2 | -181461 |
| 3sealed | 1078 | Tanaka, Hironori 2609 (1465) | Won 2-0 | +181479 |
| 4sealed | 942 | Wakatabi, Kazuhiko (1464) | Won 2-0 | +181497 |
| 5sealed | 760 | Satou, Naota (1492) | Won 2-1 | +181515 |
| 6sealed | 650 | Nam, Sung Wook (1895) | Lost 0-2 | -111504 |
| average opponent: 1525record: 3-3 | new rating: 1504 | |||