Koide, Takeo
Current rating: 1437
Record: 3-7
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 266 | Hoshi, Hirohito (1505) | Lost 0-2 | -181488 |
| 2sealed | 732 | Shinoda, Takayuki (1455) | Lost 0-2 | -191469 |
| 3sealed | 1046 | Morotome, Ken (1704) | Lost 1-2 | -131456 |
| 4sealed | 1049 | Kagami, Chisei (1445) | Lost 1-2 | -191437 |
| average opponent: 1527record: 0-4 | new rating: 1437 | |||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 261 | Yamagata, Yutaro (1643) | Won 2-0 | +211521 |
| 2standard | 443 | Amada, Michio (1500) | Won 2-1 | +171538 |
| 3standard | 446 | Mitachi, Yuuki (1569) | Lost 0-2 | -171521 |
| 4standard | 422 | Deng, Yunan (1749) | Lost 0-2 | -141507 |
| 5standard | 728 | Isomura, Takuya (1477) | Won 2-1 | +171524 |
| 6standard | 512 | Van Den Heuvel, Joey (1510) | Lost 1-2 | -181506 |
| average opponent: 1575record: 3-3 | new rating: 1506 | |||