Usami, Hirotaka
Current rating: 1548
Record: 18-15-1
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 585 | Matsuo, Shigenori (1500) | Won 2-0 | +171575 |
| 2standard | 652 | Motoshi, Takahashi (1488) | Draw 1-1 | -21573 |
| 3standard | 779 | Shinta, Tsuneto (1524) | Won 2-0 | +171590 |
| 4standard | 398 | Mitsuzane, Yuichi (1502) | Lost 1-2 | -191571 |
| 5standard | 761 | Mutou, Masaya (1481) | Won 2-1 | +161587 |
| 6standard | 461 | Im, Hyun-Ho (1504) | Lost 1-2 | -201567 |
| 7standard | 705 | Igarashi, Hisashi (1509) | Lost 0-2 | -191548 |
| top | average opponent: 1501record: 3-3-1 | new rating: 1548 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1575 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 472 | Yamazaki, Yuuji (1569) | Won 2-1 | +181593 |
| 2standard | 181 | Kawata, Yoshiaki (1510) | Won 2-1 | +171610 |
| 3standard | 81 | Komaki, Naoki (1545) | Lost 0-2 | -201590 |
| 4standard | 457 | Wada, Yuki (1736) | Lost 1-2 | -151575 |
| 5standard | 743 | Kurata, Yoshihiko (1605) | Lost 0-2 | -171558 |
| top | average opponent: 1593record: 2-3 | new rating: 1558 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1354 | Baba, Takashi (1611) | Won 2-1 | +191599 |
| 2sealed | 997 | Yoshida, Kazushi (1579) | Lost 0-2 | -191580 |
| 3sealed | 1251 | Kanaoka, Yoshihiko (1432) | Lost 1-2 | -211559 |
| 4sealed | 1225 | Tanaka, Yuki (1489) | Won 2-1 | +171576 |
| 5sealed | 1055 | Ishikawa, Syouta (1500) | Won 2-1 | +171593 |
| 6sealed | 1082 | Takenouchi, Tetsuya (1621) | Lost 0-2 | -181575 |
| top | average opponent: 1539record: 3-3 | new rating: 1575 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 724 | Chen, Yang (1390) | Lost 0-2 | -211548 |
| 2modern | 1187 | Yatori, Naoyuki (1442) | Lost 1-2 | -201528 |
| 3modern | 1197 | Hashimoto, Tatsuya (1442) | Won 2-0 | +161544 |
| 4modern | 1125 | Ozawa, Takeshi (1854) | Won 2-0 | +241568 |
| 5modern | 1043 | Matsuo, Shuto (1429) | Won 2-0 | +151583 |
| 6modern | 884 | Takechi, Takumi (1464) | Won 2-0 | +161599 |
| 7modern | 792 | Tei, Shinri (1535) | Lost 0-2 | -191580 |
| top | average opponent: 1508record: 4-3 | new rating: 1580 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 95 | Maeda, Gaku (1500) | Won 2-1 | +181518 |
| 2standard | 62 | Ogawa, Takaya (1518) | Won 2-1 | +181536 |
| 3standard | 148 | Kinugasa, Satoshi (1536) | Won 2-1 | +181554 |
| 4standard | 51 | Takimoto, Yusuke (1695) | Won 2-0 | +211575 |
| 5standard | 52 | Okamoto, Jin (1880) | Won 2-0 | +231598 |
| 6standard | 19 | Harada, Toshiyuki (1760) | Lost 1-2 | -151583 |
| 7standard | 33 | Omonishi, Kojiro (1614) | Won 2-1 | +181601 |
| 8standard | 17 | Juumonji, Ryou (1790) | Lost 0-2 | -141587 |
| 9standard | 197 | Inoue, Yu (1597) | Lost 0-2 | -181569 |
| top | average opponent: 1654record: 6-3 | new rating: 1569 | ||