Training Plan to Get You From Stuck on the Couch to Success! Run-bike-run events appeal to both runners and cyclists looking for a "multi-sport" challenge. A duathlon could be your next major goal if you want to improve your athletic abilities, get in better shape, or simply let your inner badass out. This comprehensive Duathlon training program includes every workout you'll need to complete, including strength and rest day and it's extremely simple to use!