. There were 16 competing relay teams, with. The women's 4 × 100 metres relay event at the 2020 summer olympics took place on 5 and 6 august 2021 at the japan national stadium.

The women’s 4 × 100 metres relay event at the 2020 summer olympics took place on 5 and 6 august 2021 at the japan national stadium. At the 2012 olympics the us quartet of tianna madison, allyson felix, bianca knight and carmelita jeter wiped more than half a second from the women’s 4x100m world record.