The women's 4 × 100 metres relay at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha, Qatar, from 4 to 5 October 2019.

Already passed one lane outside of Jamaica, Trinidad and Tobago's Kelly-Ann Baptiste was left far behind, more indicative of the damage Fraser-Pryce inflicted on the competition.

Through the turn, Jamaica had the lead, USA's Morolake Akinosun and GBR's Ashleigh Nelson battling for second with Mujinga Kambundji bringing the Swiss team into contention, chased by China.

In all GBR gained a metre and a half coming out of the zone with Switzerland's pass to Salomé Kora keeping pace.

Jackson held Jamaica's lead across the finish line with Neita running a strong leg to keep the pressure on.