Ookubo, Ryou
Current rating: 1397
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 812 | Takekiyo, Koji (1484) | Lost 1-2 | -171431 |
| 2standard | 1267 | Hirao, Takanori (1434) | Won 2-0 | +181449 |
| 3standard | 874 | Sasaki, Yasuhiro (1526) | Lost 1-2 | -171432 |
| 4standard | 1202 | Ooura, Masaki (1478) | Lost 1-2 | -171415 |
| 5standard | 1441 | Kishikawa, Norimasa (1435) | Lost 0-2 | -181397 |
| top | average opponent: 1471record: 1-4 | new rating: 1397 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 714 | Kurusu, Kazuki (1402) | Lost 1-2 | -191447 |
| 2standard | 911 | Ota, Kazunari (1458) | Won 2-1 | +181465 |
| 3standard | 633 | Murase, Atsushi (1499) | Draw 1-1 | 01465 |
| 4standard | 829 | Yamazaki, Yuki8029 (1511) | Lost 0-2 | -171448 |
| top | average opponent: 1468record: 1-2-1 | new rating: 1448 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1 | Takahashi, Junya (1587) | Lost 1-2 | -161484 |
| 2sealed | 137 | Furutate, Mikihiko (1448) | Lost 0-2 | -191465 |
| 3sealed | 207 | Kaneko, Hiroyuki (1462) | Won 2-0 | +181483 |
| 4sealed | 214 | Shiroza, Shinichiro (1527) | Lost 0-2 | -171466 |
| top | average opponent: 1506record: 1-3 | new rating: 1466 | ||