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 PreferenceBook 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?AdsEmailGMBOrganic SearchProspectingReferralReturning 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 NameThis field is for validation purposes and should be left unchanged.