ITU World Triathlon Series was incorporated into the series giving the same points and prize money as any other event, from this point on sprint distance events would make up a part of the series. In 2013, the series offered a total of $2.25 million in prize money to elite athletes, making it the richest series in triathlon.With the growing popularity of the ITU Triathlon Mixed Relay World Championships and the disciplines addition to the Olympic program it was decided that at three of the events on the 2018 calendar a mixed relay event would be held alongside the men's and women's competition these
ITU World Triathlon Series races will be the ITU Triathlon Mixed Relay World Championships. The world champion was formerly crowned in the ITU Triathlon World Championship, a single championship race that was held annually from 1989, the same year as the formation of the International Triathlon Union (ITU), to 2008. Beginning with the 2009 racing season the ITU Triathlon World Championship was changed to a series of events culminating with a grand final race. From 2009 to 2011 the events were known as the World Championship Series (WCS) before being relabeled World Triathlon Series (WTS) in 2012. In 2011 the sprint distance world championship