Kusumoto, Masao
Current rating: 1484
Record: 6-7
| Grand Prix Chiba 2016 (legacy) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 201 | Kanda, Hiroshi (1465) | Lost 0-2 | -181445 |
| 2legacy | 803 | Suzuki, Kouichirou (1429) | Lost 0-2 | -181427 |
| 3legacy | 1032 | Arai, Yuuki (1483) | Won 2-1 | +191446 |
| 4legacy | 1018 | Matsunaga, Masahiro (1413) | Won 2-0 | +181464 |
| 5legacy | 789 | Ichikawa, Hiroshi (1416) | Won 2-1 | +171481 |
| 6legacy | 654 | Oota, Ryou (1505) | Lost 1-2 | -181463 |
| 7legacy | 589 | Kikuchi, Kota (1413) | Won 2-0 | +171480 |
| 8legacy | 530 | Mitome, Hiroumi (1493) | Lost 1-2 | -181462 |
| 9legacy | 542 | Tinen, Kousuke (1646) | Won 2-1 | +221484 |
| average opponent: 1474record: 5-4 | new rating: 1484 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2244 | Nisii, Tatsuya (1504) | Won 2-1 | +181518 |
| 2sealed | 2050 | Shimizu, Kazuki (1518) | Lost 1-2 | -181500 |
| 3sealed | 2258 | Murakami, Mikihisa (1464) | Lost 0-2 | -191481 |
| 4sealed | 2420 | Ito, Takayuki (1482) | Lost 0-2 | -181463 |
| average opponent: 1492record: 1-3 | new rating: 1463 | |||