Maruyama, Hiroki
Current rating: 1436
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1423 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 732 | Nakatani, Hiroki (1404) | Lost 0-2 | -181405 |
| 2sealed | 935 | Kumagai, Yohei (1520) | Won 2-1 | +201425 |
| 3sealed | 939 | Ino, Keita (1509) | Lost 0-2 | -161409 |
| 4sealed | 906 | Musashi, Yutaka (1612) | Lost 0-2 | -151394 |
| 5sealed | 1013 | Monzen, Hidetake (1428) | Won 2-0 | +191413 |
| 6sealed | 733 | Shimono, Tetsuro (1526) | Won 2-1 | +201433 |
| 7sealed | 590 | Hirosawa, Takahiro (1423) | Won 2-1 | +181451 |
| 8sealed | 507 | Uchida, Kensuke (1658) | Lost 1-2 | -151436 |
| top | average opponent: 1510record: 4-4 | new rating: 1436 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 816 | Konishi, Eigo (1464) | Won 2-1 | +181491 |
| 2standard | 223 | Chu Heng, Eng (1602) | Lost 0-2 | -161475 |
| 3standard | 875 | Takita, Ryuta (1448) | Lost 1-2 | -191456 |
| 4standard | 1249 | Tsuyuzaki, Shigeru (1485) | Lost 0-2 | -171439 |
| 5standard | 1398 | Shimoguchi, Motofumi (1518) | Lost 0-2 | -171422 |
| 6standard | 1411 | Ozaki, Takuya (1449) | Won 2-1 | +191441 |
| 7standard | 1173 | Oh, Asato (1475) | Lost 0-2 | -181423 |
| top | average opponent: 1492record: 2-5 | new rating: 1423 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 91 | Sakamoto, Ryota (1485) | Won 2-1 | +181518 |
| 2modern | 213 | Usami, Taro (1705) | Lost 1-2 | -151503 |
| 3modern | 385 | Juumonji, Ryou (1790) | Lost 0-2 | -131490 |
| 4modern | 418 | Yamashita, Masahiro (1527) | Lost 0-2 | -171473 |
| top | average opponent: 1627record: 1-3 | new rating: 1473 | ||