Igarashi, Ryosuke
Current rating: 1426
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 127 | Yamamoto, Yuusuke (1369) | Lost 1-2 | -201451 |
| 2standard | 529 | Honda, Masaki (1244) | Won 2-0 | +151466 |
| 3standard | 604 | Osuga, Hiroaki (1191) | Lost 1-2 | -231443 |
| 4standard | 835 | Katani, Hiroyuki (1478) | Lost 0-2 | -171426 |
| top | average opponent: 1320record: 1-3 | new rating: 1426 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 251 | Nagai, Fukutarou (1528) | Won 2-0 | +181526 |
| 2standard | 320 | Kawagishi, Genki (1514) | Lost 1-2 | -181508 |
| 3standard | 725 | Akimoto, Taiki (1528) | Lost 0-2 | -181490 |
| 4standard | 954 | Soyama, Tomohiro (1448) | Lost 1-2 | -191471 |
| top | average opponent: 1504record: 1-3 | new rating: 1471 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 703 | Tanaka, Yoshihiro (1503) | Won 2-0 | +181518 |
| 2sealed | 140 | Iwasawa, Fumiya (1842) | Lost 0-2 | -121506 |
| 3sealed | 695 | Ooba, Hideto (1349) | Won 2-1 | +151521 |
| 4sealed | 501 | Okamoto, Yuuya (1700) | Lost 0-2 | -151506 |
| 5sealed | 801 | Poh, Liang Choong (1657) | Won 2-1 | +211527 |
| 6sealed | 383 | Takeshita, Yuuki (1457) | Lost 0-2 | -191508 |
| top | average opponent: 1584record: 3-3 | new rating: 1508 | ||