Question: Louise Wiker is a Swedish long-distance runner, she competed in the marathon event at the fifteenth edition of the IAAF World Championships, was held 22–30 August 2015 in Beijing, China, event title?
Sentence (from "2015 World Championships in Athletics"): The United States won 18 medals, six gold, six silver and six bronze, which was the highest tally.
Relevant evidence: No