Jamaica's World record-setting 4x200m quartet at the 2014 IAAF World Relays (© Getty Images)
The following world records have recently been ratified…
World record
Men
4 x 200m 1:18.63 Jamaica JAM, Nassau, BAH, 24 May 14
(Nickel Ashmeade, Warren Weir, Jermaine Brown, Yohan Blake)
previous: 1:18.68 USA, Walnut, USA, 17 Apr 94
(Michael Marsh, Leroy Burrell, Floyd Heard, Carl Lewis)
World indoor record
Men
4 x 800m 7:13.11 USA All Star USA, Boston, USA, 8 Feb 14
(Richard Jones, David Torrence, Duane Solomon, Erik Sowinski)
previous: 7:13.94 USA, Boston, USA, 6 Feb 00
(Joey Woody, Karl Paranya, Rich Kenah, David Krummenacker)
World junior indoor record
Women
1000m 2:35.80 Mary Cain (96) USA, Boston, USA, 8 Feb 14
previous: 2:40.1 Diana Richburg (63) USA, New London, USA, 07 Dec 82
(NOTE: an earlier performance by Mary Cain set at another track in Boston - 2:39.25 Mary Cain USA, Boston, USA, 16 Jan 14 - remains pending ratification)
IAAF