From the organizers Facebook event page:

Atlanta Parkour will be hosting monthly Speed, Skill, and Style competitions! The goal is to give our local athletes some competition preparation for some of the bigger competitions around the world. Our competitions will be the last Saturday of every month from 5pm-7pm. Cost is $15, but if you pay for Open Gym (12-5pm) you are free to compete! 1st place for any category (Speed/Skill/Style) will be able to compete free in the next months competition. So tell all of your training buddies and get ready! See you all March 31st!