The IRONMAN 70.3 Swansea is a half-distance triathlon event in Swansea, United Kingdom, featuring a 1.9 km swim, 90 km bike, and 21.1 km run. The course showcases the local landscape and offers a competitive yet supportive racing atmosphere. As part of the IRONMAN 70.3 series, it provides qualification opportunities for the IRONMAN 70.3 World Championship.