Mitsumori, Masahiko
Current rating: 1501
Record: 21-20-1
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 545 | Mori, Takeshi (1668) | Lost 0-2 | -161506 |
| 2sealed | 562 | Yoshihara, Tomoki (1510) | Won 2-1 | +181524 |
| 3sealed | 605 | Adachi, Yoshizumi (1388) | Won 2-1 | +161540 |
| 4sealed | 774 | Shimada, Tomoyuki (1526) | Lost 0-2 | -181522 |
| 5sealed | 819 | Umeda, Takuya (1449) | Lost 0-2 | -201502 |
| 6sealed | 848 | Furukawa, Takuto (1374) | Won 2-1 | +161518 |
| 7sealed | 775 | Matsumoto, Miki (1477) | Lost 1-2 | -191499 |
| 8sealed | 702 | Wan, James (1524) | Lost 1-2 | -171482 |
| 9sealed | 683 | Balcells, Josep (1539) | Won 2-0 | +191501 |
| top | average opponent: 1495record: 4-5 | new rating: 1501 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1135 | Kobayashi, Yuusuke (1529) | Lost 0-2 | -171488 |
| 2sealed | 1418 | Shimazaki, Taichi (1482) | Won 2-0 | +181506 |
| 3sealed | 1117 | Yato, Masanori (1501) | Lost 1-2 | -181488 |
| 4sealed | 1202 | Cher, Pohkuang (1467) | Won 2-0 | +171505 |
| 5sealed | 1160 | Muramatsu, Yoshiyuki (1467) | Won 2-1 | +181523 |
| 6sealed | 986 | Mochizuki, Yuu (1486) | Lost 0-2 | -191504 |
| 7sealed | 1034 | Koide, Tomohide (1488) | Won 2-1 | +181522 |
| top | average opponent: 1489record: 4-3 | new rating: 1522 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 35 | Saito, Tomoya (1652) | Lost 0-2 | -161546 |
| 2sealed | 339 | Sakagami, Taichi (1458) | Lost 0-2 | -201526 |
| 3sealed | 381 | Nihongi, Yuta (1384) | Lost 0-2 | -211505 |
| top | average opponent: 1498record: 0-3 | new rating: 1505 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 234 | Ueyama, Shotaro (1500) | Won 2-1 | +171569 |
| 2sealed | 80 | N., Sadaaki (1517) | Lost 1-2 | -191550 |
| 3sealed | 266 | Sugahara, Yuuji (1499) | Lost 0-2 | -191531 |
| 4sealed | 385 | Kamizono, Naoki (1587) | Lost 0-2 | -171514 |
| 5sealed | 417 | Takeda, Natsuki (1465) | Won 2-0 | +171531 |
| 6sealed | 334 | Kawano, Takahiro (1481) | Won 2-1 | +171548 |
| 7sealed | 228 | Yamakage, Takehiro (1500) | Lost 1-2 | -191529 |
| 8sealed | 353 | Koyanagi, Yasunori (1389) | Won 2-1 | +161545 |
| 9sealed | 337 | Suzuki, Junpei (1507) | Won 2-0 | +171562 |
| top | average opponent: 1494record: 5-4 | new rating: 1562 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 257 | Mori, Takayuki (1500) | Won 2-1 | +181500 |
| 2sealed | 133 | Murae, Ryuji (1517) | Won 2-1 | +181518 |
| 3sealed | 188 | Keita T., (1500) | Lost 0-2 | -181500 |
| 4sealed | 218 | Hideaki, Yonekura (1522) | Won 2-1 | +181518 |
| 5sealed | 226 | Nakano, Tatsuhito (1617) | Draw 1-1 | +21520 |
| 6sealed | 160 | Kumeyama, Yuji (1513) | Lost 0-2 | -181502 |
| 7sealed | 239 | Aoki, Shougo (1464) | Won 2-0 | +171519 |
| 8sealed | 176 | Nakamura, Yoichi (1408) | Won 2-0 | +161535 |
| 9sealed | 116 | Okumura, Noriaki (1450) | Won 2-1 | +171552 |
| top | average opponent: 1499record: 6-2-1 | new rating: 1552 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 184 | Iwamoto, Shota (1498) | Won 2-0 | +181518 |
| 2block | 134 | Kurikawa, Hideyuki (1518) | Won 2-0 | +181536 |
| 3block | 6 | Kawai, Katsuya (1552) | Lost 0-2 | -181518 |
| 4block | 248 | Okuno, Noriaki (1517) | Lost 1-2 | -181500 |
| 5block | 296 | Houwa, Osamu (1459) | Lost 1-2 | -181482 |
| top | average opponent: 1509record: 2-3 | new rating: 1482 | ||