Okai, Takahiro
Current rating: 1424
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 385 | Yoshioka, Yuki (1612) | Lost 1-2 | -161462 |
| 2sealed | 322 | Kobayashi, Hidetoshi (1355) | Lost 0-2 | -201442 |
| 3sealed | 446 | Kawano, Takahiro (1464) | Lost 1-2 | -181424 |
| top | average opponent: 1477record: 0-3 | new rating: 1424 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 76 | Yamamoto, Daichi (1489) | Lost 0-2 | -181493 |
| 5sealed | 50 | Takahira, Wataru (1360) | Won 2-0 | +151508 |
| 6sealed | 205 | Furukawa, Ken'ichi (1658) | Lost 0-2 | -151493 |
| 7sealed | 161 | Hirashima, Yuutarou (1636) | Lost 0-2 | -151478 |
| top | average opponent: 1536record: 1-3 | new rating: 1478 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 247 | Yamada, Uchu (1416) | Won 2-0 | +161516 |
| 2standard | 110 | Wen, Yuning (1519) | Won 2-1 | +191535 |
| 3standard | 116 | Se, Atsuo (1447) | Lost 0-2 | -201515 |
| 4standard | 206 | Yamane, Masahiro (1440) | Lost 0-2 | -191496 |
| 5standard | 293 | Kojima, Toshihiro (1451) | Lost 0-2 | -191477 |
| 6standard | 262 | Tsuneda, Masatoshi (1436) | Won 2-0 | +171494 |
| 7standard | 58 | Motonaga, Hiroaki (1446) | Lost 0-2 | -191475 |
| 8standard | 100 | Kishita, Yousuke (1479) | Won 2-0 | +181493 |
| 9standard | 103 | Matsuoka, Takayuki (1486) | Won 2-0 | +181511 |
| top | average opponent: 1458record: 5-4 | new rating: 1511 | ||