Katsumata, Yoshihisa
Current rating: 1479
Record: 6-7
| Grand Prix Yokohama 2012 (modern) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 388 | Masuda, Kouhei (1500) | Lost 0-2 | -191518 |
| 2modern | 491 | Sugitani, Kyousuke (1482) | Won 2-0 | +171535 |
| 3modern | 484 | Yamazaki, Hiroyuki (1495) | Lost 0-2 | -181517 |
| 4modern | 551 | Tamai, Hideaki (1484) | Lost 1-2 | -191498 |
| 5modern | 617 | Horie, Youhei (1465) | Lost 0-2 | -191479 |
| average opponent: 1485record: 1-4 | new rating: 1479 | |||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 39 | Yamaguchi, Kei (1500) | Won 2-1 | +181518 |
| 2block | 133 | Jinbo, Kazuto (1540) | Won 2-1 | +181536 |
| 3block | 70 | Shinohara, Naoyuki (1536) | Won 2-1 | +181554 |
| 4block | 54 | Katsuta, Souichi (1541) | Lost 0-2 | -181536 |
| 5block | 66 | Nakamura, Hajime (1518) | Lost 1-2 | -181518 |
| 6block | 172 | Mochizuki, Hiroyuki (1570) | Won 2-1 | +191537 |
| 7block | 113 | Tamai, Katsuyoshi (1512) | Won 2-0 | +171554 |
| 8block | 96 | Takakuwa, Minoru (1577) | Lost 1-2 | -171537 |
| average opponent: 1537record: 5-3 | new rating: 1537 | |||