The longstanding rivalry between Kenyan and Ethiopian long distance runners will be renewed once again when the 37th annual Freihofer s Run for Women 5K takes place on Saturday 30 May, after organisers announced their elite field on Wednesday (20).

Four world leads highlighted the IAAF World Challenge meeting in Beijing, and there was an attempt on Zhu Jianhua s iconic national record in the high jump by Zhang Guowei on Wednesday night (20).

It was a weekend of old rivalries, surprise packages and huge opening statements as the 2015 Diamond Race got underway in Doha and Shanghai.

The men s 200m at the Prefontaine Classic on 30 May, the next leg of the IAAF Diamond League, will feature five men with PBs faster than 20 seconds.

London 2012 Olympic Games heptathlon champion Jessica Ennis-Hill has confirmed that she will compete at the Sainsbury s Birmingham Grand Prix, an IAAF Diamond League meeting, on Sunday 7 June.

Tadese Tola, Ethiopia s world marathon bronze medallist, and his compatriot Birhane Dibaba, the 2015 Tokyo Marathon winner, will be on the start line of the 2015 Bogota International Half Marathon on Sunday 26 July.