An athletic contest consisting of running and cycling.(noun)
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Use "duathlon" in a sentence
"The duathlon is a non-swimming event and begins with a 1. 5km walk/run on Lake Hayes Track, following the triathlon's 15km biking section and 5km walk/run to the finish."
"This years race kicked off with the kids duathlon (swim and run) where over 500 under 13year olds got a little taste of the race."
"But he's happily married to Stacy Creamer , a world-class triathlete and a two-time world champion in the duathlon, a running and cycling race."