Yamaoka, Keita
Current rating: 1483
Record: 14-16-1
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 648 | Syoriken, Kazuma (1500) | Lost 0-2 | -171464 |
| 2standard | 1042 | Kase, Tomohiro (1395) | Won 2-0 | +161480 |
| 3standard | 1372 | Hiyama, Seiya (1504) | Lost 0-2 | -171463 |
| 4standard | 1284 | Kojima, Shou (1466) | Won 1-0 | +181481 |
| 5standard | 1026 | Iwase, Hirokazu (1440) | Won 2-0 | +171498 |
| 6standard | 670 | Miyawaki, Wataru (1591) | Lost 1-2 | -161482 |
| 7standard | 906 | Ishikawa, Yusuke (1499) | Won 2-0 | +181500 |
| 8standard | 780 | Adachi, Ryosuke (1537) | Lost 0-2 | -171483 |
| top | average opponent: 1491record: 4-4 | new rating: 1483 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 263 | Nishio, Masato (1485) | Lost 1-2 | -181503 |
| 2sealed | 647 | Tsunakawa, Takaaki (1481) | Lost 0-2 | -191484 |
| 3sealed | 1269 | Seko, Kazuki (1419) | Draw 1-1 | -11483 |
| 4sealed | 1176 | Takeuchi, Shouhei (1411) | Won 2-1 | +171500 |
| 5sealed | 995 | Nakagawa, Satoru (1481) | Lost 1-2 | -191481 |
| top | average opponent: 1455record: 1-3-1 | new rating: 1481 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1002 | Oota, Nobuyuki8323 (1500) | Won 2-0 | +181478 |
| 2sealed | 1089 | Tsukagoshi, Tadaki (1795) | Won 2-1 | +241502 |
| 3sealed | 1002 | Tay, Jun Hao (1749) | Won 2-1 | +221524 |
| 4sealed | 844 | Sekine, Naoto (1724) | Lost 0-2 | -141510 |
| 5sealed | 948 | Kikuchi, Fuminori (1500) | Won 2-0 | +181528 |
| 6sealed | 912 | Furugen, Takeji (1477) | Won 2-0 | +171545 |
| 7sealed | 867 | Furuya, Youhei (1666) | Won 2-1 | +201565 |
| 8sealed | 843 | Tsutsumi, Naoki (1536) | Won 2-1 | +181583 |
| 9sealed | 815 | Sato, Takatoshi (1782) | Lost 0-2 | -151568 |
| 10draft | 2 | Kumasaka, Shotaro (1593) | Lost 0-2 | -171551 |
| 11draft | 24 | Inagaki, Yukihiro (1658) | Lost 0-2 | -161535 |
| 12draft | 58 | Yamamura, Yuma (1582) | Won 2-0 | +181553 |
| 13draft | 68 | Itou, Kouei (1590) | Lost 0-2 | -171536 |
| 14draft | 101 | Kawabata, Ryosuke (1713) | Lost 1-2 | -151521 |
| top | average opponent: 1633record: 8-6 | new rating: 1521 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 305 | Akaiwa, Taku (1500) | Won 2-1 | +181518 |
| 2legacy | 186 | Inukai, Masakazu (1475) | Lost 0-2 | -191499 |
| 3legacy | 274 | Yoshino, Satoshi (1388) | Lost 1-2 | -201479 |
| 4legacy | 392 | Matsushima, Naoki (1395) | Lost 0-2 | -191460 |
| top | average opponent: 1440record: 1-3 | new rating: 1460 | ||