Hirata, Kosuke
Current rating: 1589
Record: 14-9
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 14 | Ishikawa, Maki (1500) | Won 2-0 | +171553 |
| 2sealed | 45 | Ikeuchi, Ryota (1500) | Lost 0-2 | -191534 |
| 3sealed | 702 | Sashida, Tomoro (1607) | Won 2-1 | +201554 |
| 4sealed | 680 | Gouda, Fumito (1424) | Won 2-0 | +151569 |
| 5sealed | 239 | Higashimori, Kazunori (1522) | Won 2-0 | +171586 |
| 6sealed | 176 | Makino, Hiroyuki (1701) | Lost 0-2 | -151571 |
| 7sealed | 375 | Katou, Susumu (1641) | Won 2-0 | +191590 |
| 8sealed | 213 | Saito, Yasushi (1514) | Won 2-0 | +161606 |
| 9sealed | 188 | Takesue, Chikara (1762) | Lost 1-2 | -151591 |
| 10draft | 54 | Tanakajima, Tatsuki (1551) | Won 2-0 | +181609 |
| 11draft | 51 | Furusawa, Tsukasa (1553) | Won 2-1 | +171626 |
| 12draft | 50 | Sinkis, Peter (1651) | Won 2-1 | +181644 |
| 13draft | 115 | Hanawa, Atsushi (1521) | Lost 1-2 | -201624 |
| 14draft | 99 | Okamura, Marei (1564) | Lost 1-2 | -191605 |
| 15draft | 87 | Kusunoki, Yuki (1719) | Lost 1-2 | -161589 |
| average opponent: 1582record: 9-6 | new rating: 1589 | |||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 702 | Ii, Takahiro (1500) | Lost 1-2 | -181482 |
| 2standard | 709 | Poon, Edwin (1406) | Lost 0-2 | -191463 |
| 3standard | 1077 | Nakazawa, Yuki (1464) | Won 2-0 | +181481 |
| 4standard | 828 | Ashikaga, Masatoshi (1523) | Won 2-0 | +181499 |
| 5standard | 761 | Matsushita, Masayoshi (1518) | Won 2-1 | +191518 |
| 6standard | 687 | Hamada, Yuusai (1499) | Won 2-1 | +171535 |
| 7standard | 508 | Kimura, Kosuke (1556) | Lost 0-2 | -171518 |
| 8standard | 504 | Kim, Jinho (1528) | Won 2-1 | +181536 |
| average opponent: 1499record: 5-3 | new rating: 1536 | |||