The women's 100 metres hurdles at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 27 and 28 August.

Two of the Americans disappeared in the semi-finals, Kendra Harrison by false start, 2008 Olympic Champion Dawn Harper-Nelson falling flat at the second hurdle.

Making the finals were Rollins, after a tight battle with Andrea Ivančević and world #1 Sharika Nelvis, along with Porter and Jamaica's version of the Williams sisters, Danielle and Shermaine.

Danielle along with Alina Talay and Cindy Roleder had to run personal bests just to make it into the finals.

At the ninth hurdle, Porter began to lose her balance putting Williams back in the lead.