Serizawa, Hiroki
Current rating: 1506
Record: 13-14-3
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 639 | Horie, Kazuo (1528) | Won 2-0 | +181553 |
| 2sealed | 506 | Igarashi, Junpei (1549) | Lost 0-2 | -181535 |
| 3sealed | 705 | Suzuki, Futaro (1534) | Won 2-1 | +181553 |
| 4sealed | 804 | Wada, Yusuke (1546) | Won 2-0 | +181571 |
| 5sealed | 237 | Shiwaku, Tsuyoshi (1732) | Draw 1-1 | +31574 |
| 6sealed | 369 | Soh, Weng Heng (1831) | Lost 1-2 | -141560 |
| 7sealed | 583 | Onizuka, Hiroshi (1717) | Lost 0-2 | -151545 |
| 8sealed | 700 | Ehara, Makoto (1403) | Lost 0-2 | -211524 |
| 9sealed | 660 | Shinbo, Soutaro (1495) | Lost 0-2 | -181506 |
| top | average opponent: 1593record: 3-5-1 | new rating: 1506 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 29 | Takeda, Shunsuke (1473) | Won 2-1 | +181491 |
| 2sealed | 197 | Shigehisa, Tetsuya (1523) | Lost 1-2 | -181473 |
| 3sealed | 277 | Matsuoka, Naoto (1705) | Won 2-0 | +221495 |
| 4sealed | 280 | Beppu, Takashi (1519) | Lost 1-2 | -171478 |
| 5sealed | 335 | Koumura, Masaki (1554) | Won 2-1 | +191497 |
| 6sealed | 222 | Wada, Yuusaku (1473) | Won 2-1 | +181515 |
| 7sealed | 116 | Watanabe, Yoshiaki (1438) | Won 2-0 | +161531 |
| 8sealed | 126 | Nunotani, Kousuke (1558) | Lost 0-2 | -171514 |
| 9sealed | 149 | Ootsuka, Yuusuke (1693) | Won 2-0 | +211535 |
| top | average opponent: 1549record: 6-3 | new rating: 1535 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 244 | Udaka, Shingo (1500) | Lost 0-2 | -171448 |
| 2sealed | 405 | Ikeda, Ippei (1481) | Lost 0-2 | -181430 |
| 3sealed | 505 | Kobayashi, Daisuke (1484) | Won 2-1 | +191449 |
| 4sealed | 423 | Miyahara, Syoutarou (1640) | Lost 0-2 | -141435 |
| 5sealed | 407 | Yamada, Masato1566 (1465) | Lost 1-2 | -181417 |
| 6sealed | 357 | Ueno, Sho (1446) | Won 2-0 | +191436 |
| 7sealed | 288 | Takahashi, Miyabi (1442) | Won 2-1 | +181454 |
| 8sealed | 224 | Ito, Masahiro3882 (1487) | Draw 1-1 | +11455 |
| 9sealed | 182 | Nishimura, Noboru (1456) | Won 2-1 | +181473 |
| top | average opponent: 1489record: 4-4-1 | new rating: 1473 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 778 | Kondou, Yuuki (1500) | Draw 1-1 | 01500 |
| 2sealed | 720 | Mizuno, Soichiro (1498) | Lost 1-2 | -181482 |
| 3sealed | 858 | Okano, Hiroki (1542) | Lost 0-2 | -171465 |
| top | average opponent: 1513record: 0-2-1 | new rating: 1465 | ||