Yamaguchi, Jumpei
Current rating: 1516
Record: 5-4
| Grand Prix Kobe 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 681 | Kouyama, Motoshi (1630) | Won 2-1 | +201520 |
| 2modern | 595 | Kita, Takuya (1513) | Lost 0-2 | -181502 |
| 3modern | 877 | Belanger, Zenon (1500) | Lost 1-2 | -181484 |
| 4modern | 1055 | Sugimoto, Shimpei (1502) | Won 2-1 | +191503 |
| 5modern | 831 | Satoru, Hosokawa (1500) | Won 2-1 | +171520 |
| 6modern | 481 | Ninagawa, Makoto (1495) | Lost 0-2 | -181502 |
| 7modern | 848 | Kishi, Hideyuki (1428) | Won 2-1 | +171519 |
| 8modern | 605 | Hasaba, Kenji (1366) | Won 2-1 | +151534 |
| 9modern | 481 | Nam, Kyung-Min (1560) | Lost 1-2 | -181516 |
| average opponent: 1499record: 5-4 | new rating: 1516 | |||