Triathlon Buddies is the largest triathlon community in Indonesia. In order to celebrate the 7th Tribuddies Anniversary Triathlon (Annivtri) with the theme, "Where Your Tri-Story Begin", on January 26, 2019 at the GBK Aquatic Stadium. This activity is a triathlon activity that was held for the first time at the Gelora Bung Karno complex. More than 350 participants took part in this event. Triathlon participants must complete a series of sports, namely swimming with a distance of 400 meters, followed by cycling for 20 km and ending with a 5 km run.
This activity is not a competition but rather the completion of three sports, so that all who succeed in completing all three are the winners. To complete this triathlon is certainly not an easy thing because participants need excellent physical strength. Each sport branch has different characteristics and must be completed in 1 time series. The purpose of this activity was more to popularize triathlon sports in Indonesia