Koyama, Noriki
Current rating: 1414
Record: 13-18-2
| Grand Prix Yokohama 2019 (modern) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 438 | Takamatsu, Masahiro (1357) | Won 2-0 | +161466 |
| 2modern | 203 | Kanaya, Akihiro (1360) | Lost 0-2 | -201446 |
| 3modern | 619 | Nakata, Yuuta (1506) | Lost 0-2 | -171429 |
| 4modern | 975 | Matsumoto, Ryoya (1480) | Lost 0-2 | -171412 |
| 5modern | 1078 | Onodera, Yuuji (1419) | Won 2-0 | +181430 |
| 6modern | 750 | Takamiya, Issei (1414) | Won 2-1 | +181448 |
| 7modern | 687 | Ichikawa, Tomokazu (1544) | Lost 0-2 | -161432 |
| 8modern | 651 | Arakaki, Gen (1427) | Lost 0-2 | -181414 |
| top | average opponent: 1438record: 3-5 | new rating: 1414 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 340 | Ishida, Shinpei (1574) | Won 2-0 | +201507 |
| 2standard | 65 | Hirouchi, Hideaki (1485) | Lost 0-2 | -181489 |
| 3standard | 1011 | Sakai, Hironori (1463) | Lost 1-2 | -191470 |
| 4standard | 1106 | Kouki, Nakao (1497) | Lost 1-2 | -171453 |
| 5standard | 1150 | Kubota, Hirofumi (1362) | Lost 0-2 | -201433 |
| 6standard | 1139 | Kurihara, Shota (1489) | Lost 0-2 | -171416 |
| 7standard | 1068 | Imamura, Daisuke (1274) | Won 2-0 | +151431 |
| 8standard | 941 | Tani, Emi (1444) | Won 2-0 | +191450 |
| top | average opponent: 1448record: 3-5 | new rating: 1450 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 1058 | Sasaki, Yuuichirou (1518) | Won 2-0 | +191480 |
| 2standard | 120 | Satou, Naoki (Saitama) (1500) | Lost 1-2 | -171463 |
| 3standard | 1283 | Takahashi, Akira (Setagaya) (1505) | Won 2-1 | +181481 |
| 4standard | 709 | Hachiya, Kota (1450) | Lost 1-2 | -181463 |
| 5standard | 1214 | Hosoda, Daiki (1560) | Won 2-0 | +201483 |
| 6standard | 551 | Kobayasi, Tomoya (1569) | Lost 0-2 | -171466 |
| 7standard | 834 | Furukawa, Hiroki (1579) | Draw 1-1 | +21468 |
| 8standard | 906 | Adachi, Naohiko (1500) | Draw 1-1 | +11469 |
| 9standard | 820 | Kaneko, Junpei (1505) | Won 2-1 | +181487 |
| top | average opponent: 1521record: 4-3-2 | new rating: 1487 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 510 | Nishiyama, Shinosuke (1500) | Lost 0-2 | -181482 |
| 2sealed | 895 | Itokazu, Kenta (1480) | Won 2-0 | +181500 |
| 3sealed | 993 | Uchida, Kousuke (1498) | Lost 0-2 | -181482 |
| 4sealed | 1068 | Nishizawa, Sora (1488) | Lost 0-2 | -181464 |
| 5sealed | 1019 | Higashimori, Kazunori (1486) | Won 2-0 | +181482 |
| 6sealed | 845 | Kamikawa, Takuya (1376) | Lost 0-2 | -191463 |
| 7sealed | 901 | Yoneyama, Syougo (1460) | Won 2-1 | +171480 |
| 8sealed | 781 | Tanimoto, Akinari (1409) | Lost 0-2 | -191461 |
| top | average opponent: 1462record: 3-5 | new rating: 1461 | ||