Iiba, Kozo
Current rating: 1450
Record: 9-12-1
| Grand Prix Chiba 2016 (legacy) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 509 | Sakane, Kota (1458) | Lost 1-2 | -191449 |
| 2legacy | 611 | Nagano, Toshimitsu (1462) | Won 2-0 | +191468 |
| 3legacy | 985 | Oshima, Keisuke (1503) | Lost 1-2 | -181450 |
| 4legacy | 1078 | Kakimi, Yoshinori (1478) | Lost 0-2 | -171433 |
| 5legacy | 1083 | Murakami, Taku (1362) | Won 2-1 | +171450 |
| 6legacy | 894 | Kawamoto, Ryouhei (1389) | Won 2-0 | +161466 |
| 7legacy | 709 | Kaneko, Yasuki (1527) | Lost 0-2 | -161450 |
| 8legacy | 768 | Saito, Shigeru (1477) | Draw 1-1 | 01450 |
| average opponent: 1457record: 3-4-1 | new rating: 1450 | |||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 62 | Ishikawa, Ryota (1470) | Won 2-0 | +171517 |
| 2standard | 87 | Fujino, Yuki (1518) | Won 2-0 | +181535 |
| 3standard | 288 | Ishihara, Atsushi (1532) | Lost 0-2 | -181517 |
| 4standard | 973 | Nogawa, Hiroshi (1495) | Lost 1-2 | -181499 |
| 5standard | 983 | Yoshida, Akira (1516) | Won 2-1 | +181517 |
| 6standard | 810 | Abe, Tooru (1496) | Lost 0-2 | -181499 |
| 7standard | 858 | Adachi, Toru (1500) | Won 2-0 | +181517 |
| 8standard | 842 | Asai, Hiroto (1535) | Won 2-0 | +181535 |
| 9standard | 402 | Lachaud, Remy (1840) | Won 2-0 | +241559 |
| 10standard | 435 | Sasaki, Ryouta (1528) | Lost 1-2 | -191540 |
| 11standard | 381 | Kadoyoshi, Tomonori (1481) | Lost 0-2 | -191521 |
| 12standard | 383 | Kajiya, Tatsuki (1512) | Lost 1-2 | -181503 |
| 13standard | 353 | Senshuu, Yoshinori (1577) | Lost 0-2 | -171486 |
| 14standard | 314 | Wada, Yusuke (1456) | Lost 1-2 | -181468 |
| average opponent: 1533record: 6-8 | new rating: 1468 | |||