Sakamoto, Jun
Current rating: 1616
| Grand Prix Kobe 2017 (modern) | starting rating: 1616 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 36 | Yoshida, Shinsuke (1340) | Won 2-0 | +131629 |
| 2modern | 508 | Katou, Masaya (1497) | Lost 0-2 | -201609 |
| 3modern | 1063 | Urata, Takurou (1490) | Lost 0-2 | -201589 |
| 4modern | 1015 | Tao, Hiroshi (1419) | Lost 1-2 | -211568 |
| 5modern | 1227 | Sugihara, Toshiyuki (1459) | Won 2-1 | +161584 |
| 6modern | 1102 | Yamasaki, Taro (1498) | Won 2-1 | +161600 |
| 7modern | 760 | Fukuda, Yuuki (1648) | Won 2-0 | +191619 |
| 8modern | 499 | Oda, Ryota (1430) | Lost 1-2 | -211598 |
| 9modern | 657 | Tada, Mitsuhiro (1608) | Won 2-1 | +181616 |
| top | average opponent: 1488record: 5-4 | new rating: 1616 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 738 | Iseya, Kazuki (1500) | Lost 0-2 | -181498 |
| 2legacy | 669 | Watanabe, Kohei7022 (1481) | Won 2-0 | +171515 |
| 3legacy | 741 | Hilmi, Muhammad (1528) | Won 2-1 | +191534 |
| 4legacy | 609 | Ikedo, Masakazu (1647) | Won 2-0 | +201554 |
| 5legacy | 360 | Banba, Taiki (1641) | Won 2-1 | +191573 |
| 6legacy | 87 | Tanaka, Yu (1647) | Lost 1-2 | -161557 |
| 7legacy | 232 | Saito, Fumiya (1550) | Lost 1-2 | -191538 |
| 8legacy | 479 | Tinen, Kousuke (1667) | Won 2-1 | +211559 |
| 9legacy | 277 | Kase, Tomoki (1468) | Won 2-0 | +161575 |
| 10legacy | 355 | Nakamichi, Daisuke (1897) | Lost 1-2 | -121563 |
| 11legacy | 286 | Boku, Takashi (1765) | Won 2-1 | +211584 |
| 12legacy | 254 | Mita, Ryoichi (1514) | Won 2-0 | +171601 |
| 13legacy | 221 | Kobayashi, Masanori (1575) | Won 2-0 | +181619 |
| 14legacy | 150 | Endoh, Hiroki (1555) | Lost 1-2 | -201599 |
| 15legacy | 202 | Kawasaki, Masatsugu (1535) | Won 2-1 | +171616 |
| top | average opponent: 1598record: 10-5 | new rating: 1616 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 482 | Okamoto, Ryosuke (1543) | Won 2-0 | +191519 |
| 2standard | 129 | Satou, Tsubasa (1513) | Won 2-1 | +181537 |
| 3standard | 125 | Semura, Junichi (1431) | Won 2-0 | +161553 |
| 4standard | 141 | Yoshimura, Genki (1500) | Lost 0-2 | -191534 |
| 5standard | 271 | Nagao, Kengo (1536) | Lost 1-2 | -181516 |
| 6standard | 490 | Tane, Yuuki (1516) | Won 2-0 | +181534 |
| 7standard | 244 | Numagami, Tomohiro (1536) | Lost 1-2 | -181516 |
| top | average opponent: 1511record: 4-3 | new rating: 1516 | ||