The 2013 Ironman 70.3 World Championship was a triathlon competition that was held at Lake Las Vegas in Henderson, Nevada on September 8, 2013.

This is in contrast to having an annual recurring championship in one location as in the past with Las Vegas and Clearwater, Florida.

The annual Las Vegas race will remain in place for 2014 but will be renamed the Ironman 70.3 Silverman.

Professional athletes were also eligible for prize purses at each qualifying event, which ranged in total size from $15,000 to $200,000.

The race was initially changed to a duathlon due to cold temperatures preventing the swim portion from taking place.