 Lei Ian Cheng (李甄正)
 Lei Ian Cheng (李甄正)
            Place: Macao, Macao, China
Birth: 2012-02-13
Rating: 1797.76, Std: 119.34, Rank: 1068
First game: 2020-08-06, Last game: 2025-07-21
Top rating: 1953.77 (2020-08-06)
Games: 55, Wins: 27, Draws: 0, Losses: 28
Gy1: 7, Gy2: 7, Gy5: 39
| World Renju Youth Cup 2025 (online) C Group | ||||
|---|---|---|---|---|
| Date | 2025-07-21 | Rating | 1797.76 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win |  | 1764.05 | 
| 2 | White | Loss |  | 2086.80 | 
| 3 | White | Loss |  | 1934.36 | 
| 5 | Black | Loss |  | 1665.67 | 
| 6 | White | Loss |  | 1968.44 | 
| 7 | White | Loss |  | 2034.15 | 
| 9 | Black | Win |  | 1646.17 | 
| World Renju Youth Cup 2022 (online) D Group | ||||
| Date | 2022-07-18 | Rating | 1905.67 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss |  | 2326.42 | 
| 2 | White | Win |  | 1966.38 | 
| 3 | White | Win |  | 1661.67 | 
| 4 | Black | Win |  | 1624.73 | 
| 5 | White | Loss |  | 2340.93 | 
| 6 | Black | Loss |  | 1989.67 | 
| 7 | White | Win |  | 1841.94 | 
| 8 | White | Loss |  | 1954.99 | 
| 9 | White | Loss |  | 1956.15 | 
| Mind Master 2021 (Renju online Tournament) | ||||
| Date | 2021-10-03 | Rating | 1935.14 | |
| Round | Color | Result | Opponent | |
| A1 | White | Win |  | 1861.39 | 
| A2 | Black | Loss |  | 2213.45 | 
| A3 | Black | Loss |  | 2222.75 | 
| A4 | White | Win |  | 1786.19 | 
| A5 | White | Loss |  | 1974.10 | 
| A6 | Black | Win |  | 1709.00 | 
| A7 | White | Win |  | 1893.06 | 
| C1 | White | Loss |  | 1696.16 | 
| 4th Anji World Renju Open, online, Group C | ||||
| Date | 2021-08-08 | Rating | 1942.26 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win |  | 1640.99 | 
| 2 | White | Win |  | 1766.84 | 
| 3 | White | Loss |  | 1936.96 | 
| 4 | White | Win |  | 1766.24 | 
| 5 | White | Loss |  | 1947.92 | 
| 6 | White | Win |  | 1947.67 | 
| 7 | Black | Win |  | 1982.86 | 
| 8 | Black | Loss |  | 2402.96 | 
| 9 | Black | Win |  | 1811.51 | 
| 3rd Anji World Renju Open, online, Group B | ||||
| Date | 2020-12-06 | Rating | 1946.09 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win |  | 1591.31 | 
| 2 | Black | Win |  | 2039.04 | 
| 3 | Black | Win |  | 1910.93 | 
| 4 | Black | Loss |  | 2150.49 | 
| 5 | Black | Loss |  | 1822.65 | 
| 7 | Black | Loss |  | 1920.29 | 
| Mind Master (Renju online Tournament) | ||||
| Date | 2020-10-11 | Rating | 1948.51 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss |  | 2126.35 | 
| 2 | White | Loss |  | 2006.46 | 
| 3 | Black | Win |  | 1853.42 | 
| 4 | White | Loss |  | 2003.94 | 
| 5 | Black | Win |  | 1764.22 | 
| 6 | White | Win |  | 1945.47 | 
| 7 | White | Loss |  | 2058.96 | 
| World Renju Youth Cup 2020, D Group | ||||
| Date | 2020-08-06 | Rating | 1953.77 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss |  | 2153.29 | 
| 2 | White | Loss |  | 2035.38 | 
| 3 | Black | Win |  | 1762.30 | 
| 4 | Black | Win |  | 1576.68 | 
| 5 | White | Win |  | 1873.47 | 
| 6 | White | Win |  | 2076.28 | 
| 7 | White | Win |  | 1869.88 | 
| 8 | White | Loss |  | 2356.55 | 
| 9 | Black | Loss |  | 2192.08 |