Oono, Osamu
Current rating: 1483
Record: 5-6-2
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 112 | Shirai, Kota (1500) | Won 2-1 | +181521 |
| 2pioneer | 42 | Nishida, Makoto (1656) | Lost 1-2 | -161505 |
| 3pioneer | 504 | Kitagawa, Tomohiro (1335) | Draw 1-1 | -31502 |
| 4pioneer | 568 | Watanabe, Kenji (1527) | Lost 1-2 | -181484 |
| 5pioneer | 660 | Kuriyama, Takuya (1426) | Won 2-0 | +171501 |
| 6pioneer | 523 | Ikuma, Tomoya (1490) | Lost 0-2 | -181483 |
| average opponent: 1489record: 2-3-1 | new rating: 1483 | |||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 306 | Zaizen, Kengo (1548) | Lost 1-2 | -171483 |
| 2standard | 507 | Nagae, Shuhei (1490) | Won 2-0 | +181501 |
| 3standard | 496 | Kono, Kyoichiro (1501) | Won 2-0 | +181519 |
| 4standard | 439 | Mikami, Wataru (1547) | Won 2-1 | +191538 |
| 5standard | 248 | Ichikawa, Takayoshi (1550) | Lost 0-2 | -181520 |
| 6standard | 520 | Inoue, Ojiro (1605) | Lost 0-2 | -171503 |
| 7standard | 453 | Oomori, Shouhei (1469) | Draw 1-1 | 01503 |
| average opponent: 1530record: 3-3-1 | new rating: 1503 | |||