Organisers of the Boston Marathon have announced the elite US field for the 119th edition of the IAAF Gold Label Road Race on 20 April.

When Meseret Defar and Bernard Lagat compete at the New Balance Indoor Grand Prix in Boston on 7 February, both will be marking milestones in their careers at the IAAF Indoor Permit meeting.

A look back at the highlights from the IAAF World Challenge series in 2014.

A look back at the first seven meetings from the IAAF Diamond League in 2014.

Ethiopia s Mare Dibaba won the Xiamen Marathon for the second year in succession, taking more than one-and-a-half minutes off the course record she set last year at the IAAF Gold Label Road Race, winning in 2:19:52 on Saturday (3).

A look back at the last seven meetings from the IAAF Diamond League in 2014.