4 × 1500 metres relay
From Infogalactic: the planetary knowledge core
The 4 x 1500 meters relay is an athletics track event in which teams comprise four runners who each complete 1500 meters or 3.75 laps on a standard 400 meter track.
While not a World Championship or Olympic event, the IAAF does ratify world records in the event. The men's world record is 14:22.22 by a Kenyan team of Collins Cheboi, Silas Kiplagat, James Magut and Asbel Kiprop, set on May 25, 2014 at the World Relays meet in Nassau, Bahamas. The women's world record is 16:33.58 by a Kenyan team of Mercy Cherono, Faith Kipyegon, Irene Jelagat and Hellen Obiri set on May 24, 2014 at the same event.[1][2][3]