Okabe, Gaku
Current rating: 1486
Record: 12-13
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 515 | Kamio, Hiroyuki (1536) | Lost 1-2 | -181507 |
| 4standard | 494 | Okada, Keita (1529) | Won 2-0 | +181525 |
| 5standard | 256 | Morikawa, Taichi (1635) | Lost 1-2 | -161509 |
| 6standard | 558 | Gokan, Yuta (1489) | Won 2-0 | +181527 |
| 7standard | 489 | Ishihara, Masayuki (1436) | Lost 1-2 | -201507 |
| 8standard | 679 | Ueno, Hideto (1334) | Lost 1-2 | -211486 |
| top | average opponent: 1493record: 2-4 | new rating: 1486 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 256 | Yagimoto, Ken (1426) | Won 2-0 | +171528 |
| 2extended | 41 | Tanabe, Kazuya (1283) | Won 2-0 | +131541 |
| 3extended | 19 | Kataoka, Asami (1610) | Won 2-1 | +201561 |
| 4extended | 47 | Sawade, Makoto (1567) | Won 2-1 | +181579 |
| 5extended | 42 | Kimura, Kazuki (1729) | Lost 0-2 | -151564 |
| 6extended | 104 | Asano, Atsushi (1560) | Lost 0-2 | -191545 |
| 7extended | 146 | Toshida, Shin'ichi (1385) | Lost 1-2 | -201525 |
| top | average opponent: 1508record: 4-3 | new rating: 1525 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 209 | Saito, Taishi (1489) | Won 2-0 | +171567 |
| 2sealed | 72 | Sasaki, Yuuki (Tokyo) (1518) | Lost 1-2 | -191548 |
| 3sealed | 163 | Wakayama, Shiro (1622) | Lost 0-2 | -161532 |
| 4sealed | 255 | Furukawa, Hiroyuki (1415) | Lost 0-2 | -211511 |
| top | average opponent: 1511record: 1-3 | new rating: 1511 | ||
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 112 | Terada, Tadashi (1618) | Won 2-1 | +201520 |
| 2sealed | 76 | Sakakibara, Wataru (1517) | Won 2-1 | +181538 |
| 3sealed | 38 | Watanabe, Kazuki (1534) | Won 2-1 | +181556 |
| 4sealed | 30 | Tabe, Keita (1637) | Won 2-0 | +191575 |
| 5sealed | 18 | Fujita, Osamu (1923) | Lost 0-2 | -111564 |
| 6sealed | 35 | Mihara, Makihito (1972) | Lost 0-2 | -111553 |
| 7sealed | 41 | Sutou, Takuo (1534) | Lost 0-2 | -191534 |
| 8sealed | 65 | Tezuka, Yuuki (1418) | Won 2-1 | +161550 |
| top | average opponent: 1644record: 5-3 | new rating: 1550 | ||