Iwasawa, Shun
Current rating: 1466
Record: 3-5
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 316 | Sugiyama, Takashi (1500) | Lost 0-2 | -191486 |
| 2sealed | 799 | Nishimura, Hitoshi (1342) | Lost 0-2 | -201466 |
| average opponent: 1421record: 0-2 | new rating: 1466 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 21 | Matsushima, Kenta (1427) | Won 2-0 | +171517 |
| 2sealed | 298 | Tobo, Hayato (1518) | Won 2-0 | +181535 |
| 3sealed | 106 | Kouno, Junpei (1536) | Won 2-0 | +181553 |
| 4sealed | 28 | Arita, Kento (1743) | Lost 1-2 | -151538 |
| 5sealed | 181 | Shiraishi, Ryou (1677) | Lost 0-2 | -151523 |
| 6sealed | 257 | Iwaki, Ryota (1517) | Lost 1-2 | -181505 |
| average opponent: 1570record: 3-3 | new rating: 1505 | |||