Watanabe, Kotaro
Current rating: 1464
Record: 6-8
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 225 | Yeh, Chih-Cheng (1500) | Lost 0-2 | -181466 |
| 2sealed | 349 | Hatta, Tetsuya (1511) | Won 2-1 | +191485 |
| 3sealed | 212 | Kitani, Kazuto (1500) | Lost 0-2 | -181467 |
| 4sealed | 370 | Yoshida, Mitsutaka (1214) | Won 2-0 | +141481 |
| 5sealed | 326 | Abe, Keisuke (1569) | Lost 1-2 | -171464 |
| average opponent: 1459record: 2-3 | new rating: 1464 | |||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 168 | Maruyama, Kentarou (1538) | Lost 0-2 | -171483 |
| 2standard | 258 | Yano, Kunihiro (1610) | Won 2-0 | +201503 |
| 3standard | 252 | Anan, Kazuyoshi (1435) | Lost 0-2 | -191484 |
| 4standard | 282 | Yuuki M., (1479) | Won 2-1 | +181502 |
| 5standard | 224 | Nishioka, Yugo (1502) | Won 2-0 | +181520 |
| 6standard | 144 | Katsu, Masahiro (1308) | Won 2-0 | +141534 |
| 7standard | 87 | Ushio, Atsushi (1717) | Lost 0-2 | -151519 |
| 8standard | 128 | Mitsuyasu, Hidetoshi (1578) | Lost 0-2 | -171502 |
| 9standard | 143 | Yamamuro, Yuusuke (1472) | Lost 0-2 | -181484 |
| average opponent: 1515record: 4-5 | new rating: 1484 | |||