Chatani, Yasutomo
Current rating: 1474
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1451 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 514 | Takahisa, Shishido (1500) | Won 2-0 | +191470 |
| 2standard | 594 | Uchida, Tomoaki (1414) | Lost 0-2 | -191451 |
| 3standard | 899 | Blanco, Philip (1454) | Won 2-1 | +181469 |
| 4standard | 960 | Ishikawa, Tomohiko (1515) | Lost 0-2 | -171452 |
| 5standard | 837 | Kokura, Hironori (1427) | Won 2-1 | +171469 |
| 6standard | 557 | Shiraishi, Masaharu (1681) | Lost 0-2 | -141455 |
| 7standard | 785 | Narumi, Masaru (1426) | Won 2-1 | +171472 |
| 8standard | 736 | Yoshida, Tsubasa (1499) | Won 2-1 | +191491 |
| 9standard | 584 | Hirasaki, Shinkichi (1538) | Lost 0-2 | -171474 |
| top | average opponent: 1495record: 5-4 | new rating: 1474 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 10 | Matsuyama, Takuya (1484) | Lost 1-2 | -181469 |
| 2sealed | 276 | Ogura, Tomomasa (1463) | Lost 0-2 | -181451 |
| 3sealed | 475 | Tsukiji, Masayuki (1412) | Won 2-1 | +181469 |
| 4sealed | 445 | Sasada, Naoki (1482) | Lost 0-2 | -181451 |
| top | average opponent: 1460record: 1-3 | new rating: 1451 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 694 | Harada, Dampei (1536) | Lost 0-2 | -171483 |
| 2sealed | 819 | Sato, Kouki (1600) | Lost 1-2 | -161467 |
| 3sealed | 870 | Shibata, Yasumasa (1404) | Won 2-1 | +171484 |
| 4sealed | 797 | Uchimura, Takahiko (1493) | Won 2-1 | +181502 |
| 5sealed | 770 | Ohnishi, Jyunpei (1497) | Draw 1-1 | 01502 |
| 6sealed | 747 | Tsuda, Mineyuki (1706) | Lost 0-2 | -151487 |
| top | average opponent: 1539record: 2-3-1 | new rating: 1487 | ||