The Space at Westbury is trading guitar solos and high notes for face jabs and high kicks by staging a ticketed mixed martial arts (MMA) fight night. “Worlds Collide” is a 15-match event where local amateur fighters will face off.

“MMA is one of the fastest-growing sports because it’s very entertaining and it draws great athletes,” says Nic Canobbio, president of KTFO (Knock the Fighter Out) Fights, which is coproducing this and five other MMA events at the same venue next year. “It combines boxing with wrestling, kickboxing, grappling and jiu-jitsu. There’s a lot of action involved.”

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Matches, which consist of three rounds lasting three minutes each, are held in a raised cage that sits in the middle of the floor, surrounded by seating. (VIP seats are on the stage with waiter service.)

A fight can end via knockout, submission or by decision. Much like in boxing, sanctioned referees guard against errant blows and other violations. But these contenders are fighting barefoot, with fingerless gloves.

“It’s the rawest form of fighting,” says coach Anthony D’Angelo of Long Island MMA and Fitness Center in Farmingdale. “You have to use everything you know all together and impose your will on your opponent.”

Because it’s amateur level, there’s no prize purse, therefore these fighters are there for the love of the sport.

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“The most important thing is for these athletes to get the experience they need in order to move on to the next level,” says event co-producer Tom Kilkenny, president of Aggressive Combat Championships (ACC). “About 60-70 percent become professional fighters and the others simply enjoy the thrill of competing.”