Kobayashi, Keitaro
Current rating: 1381
| Grand Prix Chiba 2016 (legacy) | starting rating: 1394 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 325 | Takamine, Hiroyuki (1665) | Won 2-1 | +231417 |
| 4legacy | 5 | Saitou, Shintaro (1540) | Lost 0-2 | -161401 |
| 5legacy | 374 | Takao, Shota (1889) | Lost 0-2 | -91392 |
| 6legacy | 692 | Saito, Gaku (1517) | Won 2-1 | +201412 |
| 7legacy | 373 | Ohkawa, Yusuke (1591) | Lost 1-2 | -151397 |
| 8legacy | 419 | Mizukami, Atsushi (1519) | Lost 1-2 | -161381 |
| top | average opponent: 1620record: 2-4 | new rating: 1381 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 107 | Aida, Ippei (1485) | Lost 0-2 | -181448 |
| 2sealed | 620 | Itodani, Tetsurou (1565) | Won 2-0 | +201468 |
| 3sealed | 698 | Ichikawa, Masaki (1445) | Lost 0-2 | -181450 |
| 4sealed | 1049 | Komori, Shota (1485) | Lost 0-2 | -181432 |
| 5sealed | 1093 | Koshiba, Norihiko (1422) | Lost 1-2 | -181414 |
| 6sealed | 1047 | Fujii, Ami (1314) | Lost 0-2 | -201394 |
| top | average opponent: 1453record: 1-5 | new rating: 1394 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 196 | Unno, Yoshifumi (1529) | Lost 0-2 | -171483 |
| 4standard | 404 | Yamaguti, Masaya (1518) | Lost 1-2 | -181465 |
| 5standard | 832 | Kobayashi, Masakatsu (1333) | Won 2-1 | +161481 |
| 6standard | 442 | Takahashi, Kei (1605) | Won 2-1 | +201501 |
| 7standard | 373 | Kageyama, Koki (1505) | Lost 1-2 | -181483 |
| 8standard | 524 | Tanabe, Tetsuya (1511) | Lost 1-2 | -171466 |
| top | average opponent: 1500record: 2-4 | new rating: 1466 | ||