Ishihara, Seiya
Current rating: 1525
Record: 5-4
| Grand Prix Kobe 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 500 | Sakamoto, Ryota (1445) | Won 2-0 | +171517 |
| 2modern | 591 | Imanishi, Eiji (1481) | Lost 1-2 | -191498 |
| 3modern | 1099 | Takatsuka, Yuuki (1600) | Won 2-0 | +201518 |
| 4modern | 791 | Murase, Hiroshi (1733) | Won 2-1 | +221540 |
| 5modern | 456 | Ryan, Hughes (1539) | Lost 1-2 | -181522 |
| 6modern | 767 | Hasegawa, Eita (1552) | Won 2-1 | +191541 |
| 7modern | 363 | Hashizume, Tomohiro (1522) | Lost 0-2 | -191522 |
| 8modern | 466 | Oh, Joo Hyun (1774) | Won 2-1 | +231545 |
| 9modern | 585 | Haratake, Noriyuki (1448) | Lost 0-2 | -201525 |
| average opponent: 1566record: 5-4 | new rating: 1525 | |||