Yamamoto, Takatoyo
Current rating: 1513
Record: 10-9
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1565 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 390 | Ishibashi, Akihito (1459) | Lost 0-2 | -201545 |
| 2pioneer | 506 | Hozumi, Satoshi (1407) | Lost 1-2 | -201525 |
| 3pioneer | 758 | Sakaki, Yusuke (1370) | Lost 0-2 | -211504 |
| 4pioneer | 772 | Koyama, Yuriko (1447) | Lost 1-2 | -191485 |
| 5pioneer | 740 | Yasuda, Keita (1319) | Won 2-0 | +151500 |
| 6pioneer | 640 | Saito, Ryo 3421 (1418) | Lost 1-2 | -201480 |
| 7pioneer | 544 | Aruga, Masakazu (1428) | Won 2-0 | +171497 |
| 8pioneer | 426 | Ito, Katsuaki (1377) | Won 2-0 | +161513 |
| average opponent: 1403record: 3-5 | new rating: 1513 | |||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 284 | Yanagihara, Hiroki (1459) | Lost 0-2 | -191481 |
| 2standard | 318 | Suzuki, Yuuji (1586) | Won 2-0 | +201501 |
| 3standard | 904 | Hayakawa, Yutaka (1416) | Won 2-0 | +171518 |
| 4standard | 376 | Yoshii, Takayuki (1639) | Won 2-0 | +201538 |
| 5standard | 284 | Yaginuma, Yujiro (1535) | Won 2-1 | +181556 |
| 6standard | 227 | Takiguchi, Yuta (1630) | Won 2-1 | +191575 |
| 7standard | 49 | Kawahama, Yoshikazu (1773) | Lost 0-2 | -141561 |
| 8standard | 238 | Kamimura, Fumihiro (1688) | Lost 1-2 | -161545 |
| 9standard | 541 | Ikeda, Masahito (1509) | Won 2-1 | +171562 |
| 10standard | 195 | Watanabe, Nobuyuki (1510) | Won 2-1 | +171579 |
| 11standard | 172 | Maurri, Filippo (1795) | Lost 0-2 | -141565 |
| average opponent: 1594record: 7-4 | new rating: 1565 | |||