Sakaguchi, Yoichi
Current rating: 1533
Record: 9-7
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1249 | Mizutani, Tomohiko (1500) | Lost 1-2 | -191495 |
| 2sealed | 1326 | Rutter, Jp (1444) | Won 2-0 | +181513 |
| 3sealed | 1198 | Kitagaito, Ryo (1448) | Lost 1-2 | -201493 |
| 4sealed | 1182 | Tetsuya, Masuda (1478) | Won 2-0 | +181511 |
| 5sealed | 1087 | Ooshima, Kazuyasu (1516) | Won 2-0 | +181529 |
| 6sealed | 1106 | Kanaya, Hirosi (1550) | Won 2-1 | +191548 |
| 7sealed | 1012 | Saito, Masanori5642 (1501) | Won 2-0 | +171565 |
| 8sealed | 893 | Shinoda, Akito (1789) | Lost 0-2 | -141551 |
| 9sealed | 937 | Maeda, Takaanori (1546) | Lost 0-2 | -181533 |
| average opponent: 1530record: 5-4 | new rating: 1533 | |||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 400 | Yoshimura, Yutaka (1416) | Won 2-1 | +161516 |
| 2modern | 166 | Kouge, Kazuhiro (1457) | Lost 0-2 | -191497 |
| 3modern | 517 | Ohara, Yasutaka (1500) | Won 2-0 | +181515 |
| 4modern | 436 | Omori, Wataru (1488) | Lost 0-2 | -181497 |
| 5modern | 468 | Ueki, Junichi (1498) | Won 2-1 | +181515 |
| 6modern | 256 | Oikawa, Masafumi (1444) | Won 2-0 | +171532 |
| 7modern | 233 | Goda, Teppei (1533) | Lost 0-2 | -181514 |
| average opponent: 1476record: 4-3 | new rating: 1514 | |||