Ishiyama, Takahiro
Current rating: 1502
Record: 10-10
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 443 | Tomiyama, Shin (1285) | Lost 1-2 | -221469 |
| 2sealed | 815 | Fuchigami, Teruaki (1477) | Won 2-0 | +181487 |
| 3sealed | 681 | Bossuyt, Jon (1501) | Lost 1-2 | -171470 |
| 4sealed | 1057 | Tsunoda, Yotaro (1392) | Won 2-1 | +161486 |
| 5sealed | 624 | Nakamura, Kousuke (1478) | Won 2-0 | +181504 |
| 6sealed | 403 | Abe, Masayuki (1466) | Lost 0-2 | -191485 |
| 7sealed | 799 | Shin, Kanyou (1480) | Won 2-1 | +181503 |
| 8sealed | 582 | Kuroda, Yoshirou (1489) | Won 2-0 | +181521 |
| 9sealed | 526 | Yamakawa, Akihiro (1477) | Lost 0-2 | -191502 |
| average opponent: 1449record: 5-4 | new rating: 1502 | |||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 86 | Shigaki, Tomoya (1510) | Lost 1-2 | -181482 |
| 4sealed | 180 | Soejima, Naoki (1515) | Won 2-0 | +191501 |
| 5sealed | 108 | Yaoita, Akihiro (1580) | Won 2-0 | +191520 |
| 6sealed | 28 | Hong, Seung-Oh (1512) | Won 2-1 | +181538 |
| 7sealed | 52 | Hirata, Koutatsu (1598) | Won 2-1 | +191557 |
| 8sealed | 16 | Kakiuchi, Nobuyuki (1592) | Lost 0-2 | -171540 |
| 9sealed | 75 | Kishibata, Kazuya (1495) | Won 2-1 | +171557 |
| 10draft | 28 | Tsuruoka, Shouta (1674) | Lost 1-2 | -161541 |
| 11draft | 38 | Nakamoto, Kosuke (1710) | Lost 0-2 | -151526 |
| 12draft | 82 | Hashimoto, Syohei (1552) | Lost 0-2 | -171509 |
| 13draft | 27 | Yamada, Toshihiro (1526) | Lost 0-2 | -181491 |
| average opponent: 1569record: 5-6 | new rating: 1491 | |||