Matsumoto, Naoki
Current rating: 1340
Record: 3-12
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 19 | Ito, Daisuke (1515) | Lost 0-2 | -171447 |
| 2standard | 834 | Katou, Masaya (1327) | Lost 0-2 | -201427 |
| 3standard | 1207 | Otaki, Masashi (1409) | Lost 0-2 | -181409 |
| 4standard | 1237 | Masui, Norioki (1362) | Lost 0-2 | -191390 |
| 5standard | 1240 | Ito, Musashi (1424) | Won 2-0 | +181408 |
| 6standard | 1133 | Kawachi, Yasunori (1447) | Lost 1-2 | -171391 |
| 7standard | 1085 | Kimonji, Hiroki (1493) | Lost 0-2 | -161375 |
| 8standard | 964 | Nakamura, Mayuka (1413) | Lost 1-2 | -171358 |
| 9standard | 852 | Iwasaki, Junya (1362) | Lost 0-2 | -181340 |
| average opponent: 1417record: 1-8 | new rating: 1340 | |||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 486 | Nomura, Hiroshi (1466) | Won 2-0 | +171517 |
| 2standard | 401 | Kato, Takuya (1520) | Lost 1-2 | -181499 |
| 3standard | 1371 | Terasawa, Kazuya (1704) | Lost 0-2 | -141485 |
| 4standard | 1267 | Hoshina, Kohei (1400) | Lost 0-2 | -191466 |
| 5standard | 1372 | Yuya, Furusawa (1462) | Won 2-1 | +181484 |
| 6standard | 1112 | Chaen, Masaki (1412) | Lost 1-2 | -201464 |
| average opponent: 1494record: 2-4 | new rating: 1464 | |||