Here are a couple of videos from Ruptly TV showing footage from Tank Biathlon 2016.  The first video is from the semi-finals on August 11.  The second video shows the final competition held earlier today.  People who like watching T-72 tanks race around will certainly enjoy these clips.

Here is a rather lengthy video in Russian showing the opening or Tank Biathlon 2016.  The first few minutes feature footage of a number of historical vehicles dating back to WW2 being driven around.

And here is a GIF of one of the competing tanks having issues with the gun stabilization.

For more on Tank Biathlon 2016, we recommend the Tank Net.com thread on the topic.