Ichikawa, Tatsuya 3238
Current rating: 1549
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 98 | Katou, Masaya (1578) | Lost 1-2 | -181539 |
| 2pioneer | 426 | Noguchi, Eita (1484) | Won 2-1 | +171556 |
| 3pioneer | 712 | Yamashita, Kohji (1224) | Won 2-0 | +121568 |
| 4pioneer | 217 | Fujita, Kotaro (1505) | Won 2-0 | +171585 |
| 5pioneer | 323 | Maki, Kazunori (1673) | Lost 1-2 | -161569 |
| 6pioneer | 466 | Arima, Kengo (1498) | Lost 1-2 | -201549 |
| top | average opponent: 1494record: 3-3 | new rating: 1549 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 509 | Nagasaki, Ryou (1548) | Lost 0-2 | -181542 |
| 2sealed | 838 | Sako, Wataru (1481) | Lost 0-2 | -191523 |
| 3sealed | 1081 | Fukuchi, Yutaka (1510) | Won 2-0 | +181541 |
| 4sealed | 1030 | Abe, Yuuta (1555) | Won 2-1 | +181559 |
| 5sealed | 839 | Ichimura, Yuji (1510) | Won 2-0 | +171576 |
| 6sealed | 679 | Kashima, Akihiro (1723) | Won 2-1 | +211597 |
| 7sealed | 205 | Takahashi, Masamichi (1518) | Lost 1-2 | -201577 |
| 8sealed | 410 | Tsukada, Hiroshi (1424) | Lost 1-2 | -201557 |
| top | average opponent: 1534record: 4-4 | new rating: 1557 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 78 | Hiroshi, Kishida (1500) | Won 2-0 | +181518 |
| 2modern | 104 | Kakuta, Yoshitaka (1406) | Lost 1-2 | -201498 |
| 3modern | 1142 | Suzuki, Takayuki (1612) | Won 2-0 | +201518 |
| 4modern | 834 | Mochizuki, Masaki (1565) | Won 2-0 | +191537 |
| 5modern | 611 | Muraoka, Hideaki (1496) | Lost 0-2 | -191518 |
| 6modern | 618 | Tsukanishi, Toshiyuki (1381) | Won 2-1 | +161534 |
| 7modern | 385 | Takano, Yuuki (1771) | Won 2-1 | +221556 |
| 8modern | 168 | Maeda, Dai (1526) | Won 2-0 | +171573 |
| 9modern | 154 | Tsuchiya, Hideaki (1820) | Lost 1-2 | -131560 |
| 10modern | 345 | Suzuki, Keisuke (1465) | Won 2-1 | +161576 |
| 11modern | 227 | Ishimaru, Ken (1705) | Lost 1-2 | -161560 |
| top | average opponent: 1568record: 7-4 | new rating: 1560 | ||