Ironman 70.3 Jönköping is a Half Ironman triathlon held in Jönköping, Sweden, as part of the Ironman circuit. Scheduled for early July, it follows the standard 70.3 format: a 1.9 km swim, a 90 km road cycling course, and a 21.1 km road run.
The race begins with the swim in Lake Jönköping. The course then winds through areas surrounding the city, the lake, and nearby natural landscapes. The run consists of three identical loops, each slightly over 7 km, allowing spectators to view athletes multiple times and providing participants with a consistent rhythm for the concluding half marathon.