2015 World Championships in Athletics – Women's 4 × 100 metres relay

It is a rare chance for all the best athletes in a country to get together to run a relay, it takes a major championship. In the heats, Canada, the Netherlands and Trinidad and Tobago set National Records to get to the finals, T&T did so while resting anchor runner Semoy Hackett for the finals. Jamaica rested two, Veronica Campbell-Brown and Elaine Thompson, but not their superstar Shelly-Ann Fraser-Pryce, in order to make six girls eligible for medals. Jamaica was the number one qualifier. USA ran their A team, to assure qualification but not resting their workhorse Allyson Felix even though Tori Bowie, Dezerea Bryant and Kaylin Whitney had been listed as their entries,[3] unlisted Jasmine Todd anchored.

In the finals Jamaica was out early with Campbell-Brown and a quick handoff to Natasha Morrison. Kseniya Ryzhova left too early and Russia never made a handoff, while USA looked to proportionally hold their own against the stagger through the backstretch with Felix. Trinidad and Tobago was also in position, while Dafne Schippers ran past Canada's Kimberly Hyacinthe on the outside. Jamaica continued to build their lead with Elaine Thompson through the tour, handing off smoothly to Shelly-Ann Fraser-Pryce in first place, who further extended their lead. USA was a clear second and Trinidad and Tobago clearly third, each with enough separation that places would not change to the finish. Behind them, the Netherlands was just slightly ahead of the British and German teams. Desiree Henry ran away from the others and was closing on Hackett,[4] while the Dutch team's illegal handover earned them a disqualification.

The Jamaican team set a new National Record and the Championship Record, Trinidad and Tobago improved theirs from earlier in the day and the British team set their National Record. In all, five teams set their National Record.

Prior to the competition, the records were as follows:[5]

World record	United States (Tianna Madison, Allyson Felix, Bianca Knight, Carmelita Jeter)	40.82	London, United Kingdom	10 August 2012
Championship record	Jamaica (Carrie Russell, Kerron Stewart, Schillonie Calvert, Shelly-Ann Fraser-Pryce)	41.29	Moscow, Russia	18 August 2013
World Leading	United States (English Gardner, Allyson Felix, Jenna Prandini, Kaylin Whitney)	41.96	Fontvieille, Monaco	17 July 2015
African Record	Nigeria (Beatrice Utondu, Faith Idehen, Christy Opara-Thompson, Mary Onyali-Omagbemi)	42.39	Barcelona, Spain	7 August 1992
Asian Record	China (Xiao Lin, Li Yali, Liu Xiaomei, Li Xuemei)	42.23	Shanghai, China	23 October 1997
North, Central American and Caribbean record	United States (Tianna Madison, Allyson Felix, Bianca Knight, Carmelita Jeter)	40.82	London, United Kingdom	10 August 2012
South American Record	Brazil (Evelyn dos Santos, Ana Cláudia Lemos, Franciela Krasucki, Rosângela Santos)	42.29	Moscow, Russia	18 August 2013
European Record	East Germany (Silke Gladisch-Möller, Sabine Rieger, Ingrid Auerswald-Lange, Marlies Göhr)	41.37	Canberra, Australia	6 October 1985
Oceanian record	Australia (Rachael Massey, Suzanne Broadrick, Jodi Lambert, Melinda Gainsford-Taylor)	42.99	Pietersburg, South Africa	18 March 2000
The following records were established during the competition:
World Leading	Jamaica (Sherone Simpson, Natasha Morrison, Kerron Stewart, Shelly-Ann Fraser-Pryce)	41.84	Beijing, China	29 August 2015
Championship record	Jamaica (Veronica Campbell-Brown, Natasha Morrison, Elaine Thompson, Shelly-Ann Fraser-Pryce)	41.07	Beijing, China	29 August 2015
World Leading

All times are local times (UTC+8)