Kotaka, Shinobu
Current rating: 1412
Record: 4-9
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2351 | Komatsu, Yuuhei (1500) | Won 2-0 | +191481 |
| 2sealed | 2188 | Kobayashi, Akihiro (1515) | Won 2-1 | +191500 |
| 3sealed | 2062 | Murata, Yutaka (1394) | Lost 0-2 | -201480 |
| 4sealed | 2266 | Fujii, Akira (1529) | Lost 0-2 | -171463 |
| 5sealed | 2275 | Kimura, Shigeki (1525) | Lost 0-2 | -171446 |
| 6sealed | 2286 | Kimonji, Hiroki (1635) | Lost 0-2 | -151431 |
| 7sealed | 2249 | Jen, Linfu (1465) | Won 2-1 | +191450 |
| 8sealed | 2177 | Harada, Hiroshi (1437) | Lost 0-2 | -181432 |
| 9sealed | 2140 | Ihara, Akihiro (1344) | Lost 0-2 | -201412 |
| average opponent: 1483record: 3-6 | new rating: 1412 | |||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1006 | Masaoka, Satoru (1480) | Won 2-1 | +181518 |
| 2modern | 892 | Kawasaki, Shinsuke (1524) | Lost 1-2 | -181500 |
| 3modern | 1028 | Mizoshita, Fumiki (1465) | Lost 1-2 | -191481 |
| 4modern | 1157 | Kitajima, Hiroyasu (1439) | Lost 0-2 | -191462 |
| average opponent: 1477record: 1-3 | new rating: 1462 | |||