Umezaki, Masanori
Current rating: 1452
Record: 14-18-2
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 327 | Kaneko, Takashi (1500) | Lost 0-2 | -181478 |
| 2standard | 391 | Tsuruoka, Shouta (1545) | Lost 1-2 | -171461 |
| 3standard | 517 | Yoshida, Mitsutaka (1160) | Won 2-0 | +131474 |
| 4standard | 504 | Sengan, Takashi (1481) | Lost 1-2 | -181456 |
| 5standard | 513 | Masuyama, Yuko (1213) | Won 2-1 | +131469 |
| 6standard | 407 | Mizoshiri, Yoshikazu (1480) | Lost 0-2 | -171452 |
| 7standard | 398 | Kuramoto, Nariyasu (1465) | Won 2-0 | +181470 |
| 8standard | 299 | Fujii, Mikiya (1457) | Lost 0-2 | -181452 |
| top | average opponent: 1413record: 3-5 | new rating: 1452 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 100 | Hibino, Yasutaka (1477) | Lost 0-2 | -181468 |
| 2sealed | 154 | Nakagawa, Tsukasa (1399) | Lost 0-2 | -191449 |
| 3sealed | 201 | Paine, Chris (1464) | Won 2-0 | +181467 |
| 4sealed | 173 | Mori, Junpei (1579) | Won 2-1 | +201487 |
| 5sealed | 127 | Yamagami, Yudai (1585) | Won 2-1 | +201507 |
| 6sealed | 93 | Arakawa, Tatsuya (1581) | Won 2-1 | +191526 |
| 7sealed | 110 | Shiozu, Ryouma (1830) | Lost 1-2 | -121514 |
| 8sealed | 90 | Takahashi, Keisuke (1517) | Lost 0-2 | -181496 |
| top | average opponent: 1554record: 4-4 | new rating: 1496 | ||
| Grand Prix Kitakyushu 2007 (LRW limited) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 99 | Takehana, Yuki (1567) | Won 2-0 | +211449 |
| 2sealed | 60 | Chao, Peter (1610) | Won 2-0 | +211470 |
| 3sealed | 41 | Yasutomi, Hiroto (1920) | Won 2-0 | +251495 |
| 4sealed | 3 | Yamashita, Hidetoshi (1532) | Lost 0-2 | -171478 |
| 5sealed | 53 | Okabayashi, Masanao (1566) | Lost 0-2 | -161462 |
| 6sealed | 97 | Oota, Yuusuke (1493) | Lost 1-2 | -181444 |
| 7sealed | 90 | Yoshida, Hiroshi (1582) | Won 2-1 | +211465 |
| 8sealed | 71 | Kurakami, Shun (1657) | Won 2-0 | +211486 |
| top | average opponent: 1616record: 5-3 | new rating: 1486 | ||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 99 | Minashima, Nobuhiro (1500) | Lost 1-2 | -171446 |
| 2sealed | 136 | Tsukimoto, Kazuhiro (1425) | Draw 1-1 | 01446 |
| 3sealed | 162 | Makishita, Ryosuke (1482) | Lost 0-2 | -181428 |
| top | average opponent: 1469record: 0-2-1 | new rating: 1428 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 177 | Takeda, Hiroya (1465) | Lost 0-2 | -191481 |
| 2sealed | 169 | Miyazawa, Hisashi (1482) | Lost 1-2 | -181463 |
| 3sealed | 186 | Kaneko, Takanori (1464) | Lost 1-2 | -181445 |
| 4sealed | 194 | Miyahara, Naoaki (1445) | Won 2-0 | +181463 |
| 5sealed | 162 | Imai, Yusuke (1448) | Draw 1-1 | 01463 |
| 6sealed | 142 | Furukawa, Tadataka (1462) | Won 2-1 | +181481 |
| 7sealed | 111 | Arai, Jin (1497) | Lost 0-2 | -181463 |
| top | average opponent: 1466record: 2-4-1 | new rating: 1463 | ||