Ono, Koutarou
Current rating: 1371
| Grand Prix Chiba 2016 (legacy) | starting rating: 1418 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 490 | Inukai, Kazuki (1518) | Lost 0-2 | -161402 |
| 3legacy | 927 | Kubota, Hirofumi (1381) | Won 2-1 | +181420 |
| 4legacy | 400 | Inamura, Sachio (1521) | Lost 1-2 | -161404 |
| 5legacy | 690 | Biaggi, Andrea (1520) | Lost 1-2 | -161388 |
| 6legacy | 811 | Nagae, Shuhei (1473) | Lost 0-2 | -171371 |
| top | average opponent: 1483record: 1-4 | new rating: 1371 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 222 | Asano, Jun'ya (1497) | Lost 1-2 | -171430 |
| 3standard | 418 | Tazawa, Kazuhide (1480) | Lost 0-2 | -171413 |
| 4standard | 506 | Aoshima, Satoshi (1357) | Lost 0-2 | -191394 |
| 5standard | 511 | Inami, Yuuki (1429) | Won 2-1 | +181412 |
| 6standard | 439 | Nakatsu, Yoshihito (1452) | Lost 0-2 | -171395 |
| 7standard | 384 | Ishii, Kazuki (1466) | Won 2-1 | +191414 |
| 8standard | 304 | Kuwahara, Yoshiki (1572) | Lost 1-2 | -151399 |
| 9standard | 291 | Ishifuro, Yuichi (1461) | Won 2-1 | +191418 |
| top | average opponent: 1464record: 3-5 | new rating: 1418 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 874 | Oowani, Kazuki (1500) | Lost 0-2 | -181482 |
| 2sealed | 990 | Kuriyama, Kazuya (1502) | Lost 1-2 | -181464 |
| 3sealed | 1096 | Nakamura, Keisuke (1488) | Lost 0-2 | -171447 |
| top | average opponent: 1497record: 0-3 | new rating: 1447 | ||