Wakamatsu, Shutaroh
Current rating: 1338
Record: 1-11
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1375 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 234 | Ooneda, Yoshihiro (1621) | Lost 0-2 | -141361 |
| 2standard | 741 | Hagihara, Shota (1465) | Lost 0-2 | -161345 |
| 3standard | 1072 | Kochi, Daiki (1598) | Lost 0-2 | -141331 |
| 4standard | 1049 | Hiraoka, Taku (1417) | Won 2-1 | +201351 |
| 5standard | 942 | Shiraishi, Masaharu (1636) | Lost 0-2 | -131338 |
| average opponent: 1547record: 1-4 | new rating: 1338 | |||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 381 | Tsutsui, Yuki (1623) | Lost 0-2 | -161484 |
| 2standard | 787 | Shibazaki, Toma (1481) | Lost 0-2 | -181466 |
| 3standard | 1268 | Matsuda, Atsushi (1543) | Lost 0-2 | -161450 |
| 4standard | 1255 | Tanaka, Tomonori (1269) | Lost 0-2 | -221428 |
| 5standard | 1241 | Hanada, Keisuke (1438) | Lost 0-2 | -171411 |
| 6standard | 1179 | Ootsu, Takuya (1416) | Lost 0-2 | -181393 |
| 7standard | 1089 | Arisue, Kei (1390) | Lost 1-2 | -181375 |
| average opponent: 1452record: 0-7 | new rating: 1375 | |||