Contact Knockout Boxing & Fitness Newark: (302) 737 3708 Middletown: (302) 828-0028 Locations: Newark, Delaware Middletown, Delaware Book a Class Here! Knockout Boxing Newark, Delaware (302) 737-3708 1244 Capitol Trail, Newark, DE 19711 Follow Knockout Boxing Middletown, Delaware (302) 828-0028 103 Patriot Drive Middletown, DE 19709 Follow Need More Information Name First Last Email LocationSelect LocationNewark, DEBel Air, MDMiddletown, DEMessage Δ Sign Up For Your First Class Here! Subscribe for Your Trial Class, Deals and Giveaways! Name Email PhoneWhat class are you interested in?What class are you interested in?Cardio KickboxingYouth Boxing (5-12)Adult BoxingPersonal Training Δ