Wei, Mengyi
Current rating: 1525
Record: 17-17-1
| Grand Prix Beijing 2018 (DOM limited) | starting rating: 1548 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 138 | Li, Liang (1561) | Lost 1-2 | -181530 |
| 2sealed | 324 | Du, Bin (1350) | Won 2-1 | +151545 |
| 3sealed | 279 | Guo, Chengxin (1473) | Won 2-1 | +161561 |
| 4sealed | 228 | Song, Yao (1482) | Lost 0-2 | -191542 |
| 5sealed | 328 | Van Den Heuvel, Matthias (1613) | Lost 1-2 | -171525 |
| top | average opponent: 1496record: 2-3 | new rating: 1525 | ||
| Grand Prix Shanghai 2017 (XLN standard) | starting rating: 1613 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 198 | Wang, Hao 5565 (1482) | Lost 1-2 | -201593 |
| 2standard | 178 | Cai, Wenzhe (1480) | Won 2-0 | +161609 |
| 3standard | 169 | Zhuang, Lingzheng (1588) | Won 2-0 | +181627 |
| 4standard | 209 | Hiraoka, Shigenori (1434) | Lost 1-2 | -221605 |
| 5standard | 254 | Feng, Da (1638) | Lost 0-2 | -171588 |
| 6standard | 264 | Yang, Chen Han (1473) | Lost 0-2 | -201568 |
| 7standard | 268 | Liu, Tianze (1459) | Lost 0-2 | -201548 |
| top | average opponent: 1508record: 2-5 | new rating: 1548 | ||
| Grand Prix Beijing 2017 (AKH limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 177 | Zhou, Jiacheng (1617) | Lost 0-2 | -161486 |
| 4sealed | 229 | Hai, Xia (1450) | Won 2-1 | +171503 |
| 5sealed | 125 | Wei, Chengyi (1545) | Lost 0-2 | -171486 |
| 6sealed | 255 | Lin, Xiao (1537) | Won 2-0 | +191505 |
| 7sealed | 147 | Wen, Yi (1543) | Lost 1-2 | -171488 |
| 8sealed | 282 | Mak, Wai Hou (1625) | Won 2-0 | +201508 |
| 9sealed | 133 | Murayama, Keiichiro (1651) | Won 2-0 | +211529 |
| 10draft | 127 | Zhao, Yutao (1560) | Won 2-0 | +181547 |
| 11draft | 145 | Kwok, Bone (1738) | Won 2-1 | +221569 |
| 12draft | 102 | Jim, Thomas (1787) | Won 2-1 | +221591 |
| 13draft | 49 | Pan, Yude (1574) | Won 2-0 | +171608 |
| 14draft | 50 | Brown, Eric (1868) | Lost 1-2 | -131595 |
| 15draft | 12 | Zhou, Zhengyang (1610) | Won 2-1 | +181613 |
| top | average opponent: 1623record: 9-4 | new rating: 1613 | ||
| Grand Prix Beijing 2016 (SOI limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 28 | Dunsford, Denny (1819) | Lost 1-2 | -121488 |
| 4sealed | 288 | Xu, Shiwei (1540) | Won 2-1 | +191507 |
| 5sealed | 75 | Wang, Xuan-ji (1837) | Won 2-0 | +231530 |
| 6sealed | 92 | Zhou, Zheng (1555) | Draw 1-1 | +11531 |
| 7sealed | 92 | Xie, Hao Chen (1709) | Won 2-1 | +211552 |
| 8sealed | 56 | Wang, Yanghai (1632) | Won 1-0 | +201572 |
| 9sealed | 28 | Liu, Zhuoran (1673) | Lost 1-2 | -171555 |
| 10draft | 141 | Nan, Weihua (1583) | Lost 1-2 | -171538 |
| 11draft | 53 | Zhou, Jiacheng (1517) | Lost 0-2 | -181520 |
| 12draft | 104 | Li, Wei 3588 (1543) | Lost 0-2 | -181502 |
| top | average opponent: 1641record: 4-5-1 | new rating: 1502 | ||