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.