Jón Oddur has been active from early childhood at the age of 12. He rode his first century ride 160km gravel trip with over 2400m incline) with his best friend, with one sleepover in a cabin on top of one mountain peak. After this trip his interest for cycling and endurance sports woke and has never stopped. The following years, he used his MTB to explored new routes from his home town and usually arrived late for dinner, as he had so much fun riding. 

After finishing his first Ironman in 2013, he still wanted to push himself further and enrolled in both the Norseman and Swissman Extreme Triathlon lotteries. He won entry into the Swissman Extreme Triathlon. After finishing Swissman, he took few years off, reducing his training load, but another big race was always in his mind--to travel half the globe to Patagonia and race the Patagonman Extreme Triathlon, which he finished 2018. 

During this triathlon times he has been active coach both in his club and also with individuals locally and online, coaching people in cycling, running and triathlon in all distances.