The 2010 IAAF World Half Marathon Championships was held in Nanning, China on 16 October 2010. The competition took place on the city streets, beginning and ending at Wuxiang Square, with a total prize purse of US$245,000 at stake. A total of thirty countries were represented at the 19th edition of the competition and 123 runners altogether were entered into the men's and women's races. The event was the final edition to be held on an annual schedule, as the competition switched to a biennial format for the 2012 championships.