1500m men last lap 8:55 4x400 m relevo mujeres campeonato del mundo de atletismo 2015 Pekin.<br>Jamaica Defeats USA to win womens 4x400m Final IAAF World Championship Beijing 2015.<br>4x400m women relay IAAF World Athletics Championships 2015 Beijing 2015 World Championships In Athletics,Relay Race,IAAF World Championships In .<br>1 UNITED STATES 2:57.82 W 2 TRINIDAD AND TOBAGO 2:58.20 NR 3 GREAT BRITAIN &amp; N.I. 2:58.51 SB 4 JAMAICA JAM JAM 2:58.51 SB 5 BELGIUM BEL .
