Watanabe, Kouhei 7696
Current rating: 1510
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 2pioneer | 232 | Kageyama, Taiki (1408) | Won 2-0 | +161538 |
| 3pioneer | 244 | Takeshita, Toru (1758) | Won 2-0 | +221560 |
| 4pioneer | 89 | Okino, Ryuu (1654) | Won 2-0 | +201580 |
| 5pioneer | 4 | Hayashi, Hisaaki (1532) | Lost 1-2 | -191561 |
| 6pioneer | 134 | Tanaka, Takahiro (1487) | Lost 1-2 | -201541 |
| 7pioneer | 262 | Yagi, Hitoshi (1662) | Lost 1-2 | -151526 |
| 8pioneer | 282 | Jung, Yong Hyuk (1674) | Lost 1-2 | -161510 |
| top | average opponent: 1596record: 3-4 | new rating: 1510 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 355 | Kudo, Takafumi (1500) | Lost 0-2 | -181482 |
| 2standard | 532 | Adachi, Kazumasa (1560) | Won 2-1 | +201502 |
| 3standard | 862 | Kunimoto, Jumpei (1502) | Won 2-1 | +181520 |
| 4standard | 680 | Watanabe, Kouhei 8114 (1580) | Won 2-1 | +191539 |
| 5standard | 162 | Takahashi, Ryo 3906 (1724) | Lost 0-2 | -151524 |
| 6standard | 446 | Tsunoda, Yotaro (1377) | Won 2-1 | +151539 |
| 7standard | 390 | Matsubara, Shintaro (1565) | Lost 1-2 | -171522 |
| top | average opponent: 1544record: 4-3 | new rating: 1522 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 170 | Sato, Ryuji (1502) | Won 2-0 | +181518 |
| 2sealed | 263 | Shimazu, Yoshiki (1630) | Lost 0-2 | -161502 |
| 3sealed | 755 | Kamishiro, Issey (1502) | Lost 1-2 | -181484 |
| 4sealed | 783 | Hakozaki, Yuta (1470) | Won 2-0 | +181502 |
| 5sealed | 652 | Masaki, Arata (1454) | Won 2-0 | +171519 |
| 6sealed | 699 | Tamano, Yuuki (1484) | Lost 1-2 | -191500 |
| top | average opponent: 1507record: 3-3 | new rating: 1500 | ||