Nakayama, Ian
Current rating: 1570
Record: 10-6
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 20 | Kawaguchi, Kyouhei (1826) | Lost 1-2 | -131519 |
| 2sealed | 819 | Kaneko, Satoru (1508) | Lost 1-2 | -181501 |
| 3sealed | 999 | Shimamura, Riku (1491) | Won 2-0 | +181519 |
| 4sealed | 811 | Tomita, Eisuke (1484) | Won 2-0 | +171536 |
| 5sealed | 770 | Bergelin, Johan (1515) | Won 2-0 | +181554 |
| 6sealed | 655 | Fukazawa, Yuuki (1558) | Won 2-1 | +181572 |
| 7sealed | 274 | Ieda, Toma (1563) | Won 2-0 | +181590 |
| 8sealed | 341 | Itou, Daiki 9873 (1509) | Lost 0-2 | -201570 |
| average opponent: 1557record: 5-3 | new rating: 1570 | |||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 782 | Uesugi, Shunta (1560) | Won 2-0 | +191519 |
| 2sealed | 196 | Yamagishi, Hideaki (1465) | Lost 1-2 | -191500 |
| 3sealed | 872 | Maeda, Takashi (1285) | Lost 0-2 | -221478 |
| 4sealed | 917 | Saegusa, Nobuyuki (1450) | Won 2-0 | +181496 |
| 5sealed | 686 | Kawada, Hiroyuki (1300) | Won 2-1 | +141510 |
| 6sealed | 338 | Tajitsu, Yoshiyuki (1522) | Won 2-1 | +181528 |
| 7sealed | 373 | Nitta, Ryou (1660) | Won 2-1 | +211549 |
| 8sealed | 315 | Sibata, Kouji (1615) | Lost 0-2 | -171532 |
| average opponent: 1482record: 5-3 | new rating: 1532 | |||