FREE CLASS SIGN UP It's time to start crushing your goals. Book your free class now at metro Atlanta's #1 training clubs for kickboxing, martial arts and fitness, and start burning up to 900 calories per workout. Real Training. Real Results. SIGN UP Free Class Signup Form Select Location*Select LocationNorth MariettaWest MidtownMariettaInman ParkAthensClass Preference*Class PreferenceAHF BoxingAdvanced BoxingBJJBJJ (Advanced - Blue Belts and Above)BJJ (All Belts)BJJ (Beginner - White Belts)BJJ (No-Gi - All Levels)BJJ Open MatBoxing (All Levels)Fast TrackKickboxingMMA (All Levels)Muay ThaiPartnership EventPower TrackYogaYouth BJJ (Ages 10-15)Youth BJJ (All Ages)Youth Boxing (All Ages)Book Now I am ready to book a class now Select Your Class Change Class First Name* Last Name* Email* Phone*HiddenHow did you hear about us?How did you hear about us?AdrollAdsDirectoryEmailEventGMBGoogle AdwordsOrganic SearchOrganic SocialPaid SocialProspectingReferralReturning MemberSocial MediaWho referred you to X3 Sports? Your GoalsPromo Code You must be over 18 to book a free class at X3 Sports. If you are under 18, a parent or guardian must accompany you to your first class.HiddenDate HiddenTime HiddenLegacy UTM Data PhoneThis field is for validation purposes and should be left unchanged.