Naoshima, Jun
Current rating: 1464
Record: 3-5
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 494 | Kikuchi, Yuuji (1646) | Lost 0-2 | -151485 |
| 2sealed | 932 | Suzuki, Masahiro 5436 (1590) | Lost 0-2 | -161469 |
| 3sealed | 1146 | Takekiyo, Koji (1312) | Won 2-0 | +151484 |
| 4sealed | 977 | Miyamoto, Naoki (1500) | Lost 1-2 | -181466 |
| 5sealed | 934 | Furuuchi, Yusuke (1471) | Lost 0-2 | -181448 |
| 6sealed | 861 | Takahashi, Satoshi (1445) | Lost 1-2 | -181430 |
| 7sealed | 744 | Hieda, Yosuke (1427) | Won 2-0 | +181448 |
| 8sealed | 620 | Okada, Hajime (1350) | Won 2-1 | +161464 |
| average opponent: 1468record: 3-5 | new rating: 1464 | |||