The  quartet of Serena Cole, Tina Clayton, Kerrica Hill and Tia Clayton teamed up to   land  the  gold  medal  at  the   world  under  20  Championships  in  Cali  Colombia  on  August  5  last  year,  clocking  42.59  seconds …………..

The performance shaved 35 hundredths  of  a  second  off the previous record that the same team had achieved on  August 22, 2021 at the previous world U20 Championships in Nairobi.

A similar quartet – but with Brianna Lyston on third leg instead of hill – had clocked a marginally quicker 42.58 at the Carifta games earlier in 2022, but it could not be ratified as a record.