The second certificate from Crossfit.com

Yes, the second certificate from Crossfit.com.

It is not as difficult as the first one as it is only focused on beginner and basic skills. However, it really gives students foundation knowledge on running position. 
It also teaches us methodology in how to spot out your own fault.  I am going to try it once next time when I run.

How about you? Are you ready for your next run? If you want to improve your running skill, you should join this course too!