Akiba, Hiroyuki
Current rating: 1411
| Grand Prix Yokohama 2019 (modern) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 101 | Ishikawa, Yusuke (1480) | Won 2-0 | +181465 |
| 2modern | 426 | Lee, Young Su (1428) | Won 2-0 | +181483 |
| 3modern | 502 | Hatakeyama, Shogo (1538) | Lost 0-2 | -171466 |
| 4modern | 426 | Yamasaki, Yuuta (1445) | Lost 0-2 | -191447 |
| 5modern | 829 | Danjo, Hiroyuki (1413) | Lost 1-2 | -181429 |
| 6modern | 807 | Umezawa, Naoki (1421) | Lost 1-2 | -181411 |
| top | average opponent: 1454record: 2-4 | new rating: 1411 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 370 | Yamagishi, Riki (1500) | Lost 1-2 | -181449 |
| 2modern | 645 | Fujiwara, Hiroshi (1401) | Lost 1-2 | -191430 |
| 3modern | 1206 | Masunaga, Suzuno (1445) | Won 2-0 | +191449 |
| 4modern | 1094 | Kamei, Toshio (1501) | Won 2-0 | +191468 |
| 5modern | 930 | Kedo, Yuta (1503) | Won 2-0 | +181486 |
| 6modern | 469 | Watanabe, Maki (1490) | Lost 0-2 | -181468 |
| 7modern | 795 | Sakurai, Tomoya (1268) | Lost 0-2 | -211447 |
| top | average opponent: 1444record: 3-4 | new rating: 1447 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 918 | Kihara, Ryou (1779) | Lost 0-2 | -131487 |
| 2modern | 1140 | Lessmann, Richard (1430) | Lost 0-2 | -191468 |
| 3modern | 1238 | Kiyokane, Yoshifumi (1463) | Won 2-1 | +181486 |
| 4modern | 1074 | Hiroi, Genki (1470) | Won 2-0 | +181504 |
| 5modern | 995 | Yoshida, Nobuyoshi (1515) | Lost 1-2 | -181486 |
| 6modern | 1043 | Furujou, Takashi (1426) | Lost 1-2 | -191467 |
| top | average opponent: 1514record: 2-4 | new rating: 1467 | ||