My name is Mark Kleanthous and I have crossed the finish line in more than 440 triathlons, I have probably competed in more triathlons than anyone else in the world!

I have competed as an elite triathlete and won numerous triathlons and  have won national medals as a top age group triathlete at most distances.

During the last 17 years I have coached athletes from 18 years to 76 years young. From first time novice competing in their first triathlon to professional full time athletes to qulaify for world championships (Sprint Olympic Middle IronMan & XTERRA)

I have extensive knowledge and expertise TO successfully coach athletes to achieve their golas.

Whether you have little fitness or who have come from a single sport background to athletes who want to improve and even qualify for World championships or Kona I have a proven track record.

Contact me to discuss your coaching requirements


British Triathlon coaching level 1 & 2