Wu Lei gained his first international experience at the 2019 Asian Championships in Doha , where he won the silver medal behind the team from Japan with the Chinese 4 x 400 meter relay with a new national record of 3: 03.55 min.
In 2019, Wu became the Chinese indoor champion in the 400-meter run.
Note: This article places the family name before the person's first name. This is the usual order in Chinese. Wu is the family name here, Lei is the first name.