Doi, Koichiro
Current rating: 1482
Record: 3-4
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 150 | Terada, Yuuki (1410) | Lost 0-2 | -201480 |
| 2legacy | 539 | Matsuura, Koji (1473) | Won 2-0 | +181498 |
| 3legacy | 387 | Kamioka, Masayuki (1565) | Lost 0-2 | -171481 |
| 4legacy | 626 | Tajitsu, Yoshiyuki (1484) | Won 2-1 | +181499 |
| 5legacy | 479 | Nakayama, Kousuke (1517) | Won 2-0 | +191518 |
| 6legacy | 385 | Sogo, Eiji (1529) | Lost 1-2 | -181500 |
| 7legacy | 401 | Kikuchi, Keita (1521) | Lost 0-2 | -181482 |
| average opponent: 1500record: 3-4 | new rating: 1482 | |||