Imaizumi, Riku
Current rating: 1641
Record: 22-16-1
| Grand Prix Kobe 2017 (modern) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 304 | Okamoto, Ichiro (1670) | Won 2-0 | +221492 |
| 2modern | 231 | Fujimoto, Kazuki (1444) | Won 2-0 | +171509 |
| 3modern | 102 | Sutou, Masayoshi (1497) | Won 2-0 | +171526 |
| 4modern | 73 | Nabetani, Satoki (1628) | Won 2-0 | +201546 |
| 5modern | 3 | Ogawa, Syouta (1653) | Won 2-0 | +201566 |
| 6modern | 41 | Shinohara, Kazuaki (1599) | Won 2-0 | +191585 |
| 7modern | 14 | Murata, Kazuki (1567) | Won 2-1 | +181603 |
| 8modern | 15 | Park, Bi-O (1877) | Lost 0-2 | -141589 |
| 9modern | 39 | Urata, Takurou (1609) | Lost 0-2 | -171572 |
| 10modern | 148 | Kawaguchi, Takashi (1748) | Draw 1-1 | +31575 |
| 11modern | 114 | Iwasa, Takuma (1599) | Won 2-1 | +181593 |
| 12modern | 75 | Iwasawa, Fumiya (1887) | Won 2-1 | +241617 |
| 13modern | 43 | Kubo, Yuta (1664) | Won 2-1 | +181635 |
| 14modern | 27 | Yoshida, Shintarou (1740) | Won 2-0 | +201655 |
| 15modern | 15 | Peng, Jianjia (1831) | Lost 1-2 | -141641 |
| top | average opponent: 1668record: 11-3-1 | new rating: 1641 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 989 | Fujiwara, Kotaro (1500) | Won 2-0 | +181502 |
| 2modern | 906 | Ikedo, Masakazu (1708) | Won 2-1 | +221524 |
| 3modern | 879 | Ikushima, Taiga (1542) | Lost 0-2 | -181506 |
| 4modern | 949 | Sakaguchi, Masanobu (1519) | Lost 0-2 | -181488 |
| 5modern | 1103 | Iriyama, Koki (1502) | Won 2-0 | +191507 |
| 6modern | 974 | Takashima, Kosuke (1516) | Lost 1-2 | -181489 |
| 7modern | 974 | Sato, Hiroyuki (1446) | Lost 0-2 | -191470 |
| top | average opponent: 1533record: 3-4 | new rating: 1470 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1451 | Williams, Madison (1500) | Won 2-1 | +181501 |
| 2sealed | 1566 | Wolfmeier, Gary (1499) | Lost 0-2 | -181483 |
| 3sealed | 1636 | Parise, Brett (1492) | Lost 1-2 | -181465 |
| 4sealed | 1668 | Gray, Robert (1486) | Won 2-1 | +191484 |
| 5sealed | 1375 | Fernandez, Rodolfo (1466) | Lost 0-2 | -191465 |
| 6sealed | 1135 | Noda, Akio (1479) | Lost 1-2 | -171448 |
| 7sealed | 854 | Nowak, Chris (1462) | Won 2-0 | +181466 |
| 8sealed | 587 | Crowley, Dave (1461) | Won 2-1 | +181484 |
| top | average opponent: 1481record: 4-4 | new rating: 1484 | ||
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 25 | Miller, Brandon (1632) | Lost 1-2 | -161484 |
| 2sealed | 287 | Martens, Adam (1482) | Lost 1-2 | -181466 |
| 3sealed | 356 | Hoang, Adrian (1464) | Won 2-0 | +181484 |
| 4sealed | 332 | Bennight, Paul (1463) | Won 2-1 | +181502 |
| 5sealed | 307 | Laster, Charles (1502) | Won 2-1 | +181520 |
| 6sealed | 195 | Roberts, Cody (1487) | Lost 0-2 | -191501 |
| 7sealed | 207 | Abdullahad, David (1480) | Won 2-0 | +181519 |
| 8sealed | 143 | Resendez, Festus (1440) | Lost 0-2 | -201499 |
| 9sealed | 152 | Slingerland, Maxfield (1568) | Lost 1-2 | -161483 |
| top | average opponent: 1502record: 4-5 | new rating: 1483 | ||