Duke, which was a late arrival to the recruiting party, offered Muniz within the last two weeks. On Friday, that whirlwind courtship paid off as Muniz took to Twitter to announce his decision.
"I'm a Blue Devil," he wrote. "I just committed to Duke. It's a true blessing and a dream come true, and I want to thank everyone who helped support me."
Muniz becomes the 13th commitment from the class of 2014 and the second cornerback. He has yet to be evaluated for star ranking by Scout.com.
According to his head coach, Scott Pingel, he has the ability to contribute in a big way at the collegiate level.
"Zach is a tremendous corner back," Pingel reported. "He has great change of direction and corners are hard to find.
"He can play press man, he can play off man, he can play zone and he will come up and hit you. He is going to be versatile for us and can play offense. He is going to be a great player for us.
"Zach gas good length -- 6'1, about 165, so he is long and can cover you. And he can stay on the receiver pretty good."
Pingel explained that match-ups with top players in practice helps Muniz get prepared for the next level.
"Zach had great year last year," Pingel began. "He went up against Arrion Penton every day last year, and you know he went to Mizzou. He has had a lot of success against the big body types and he understands how to defend the smaller quicker types, so the versatility he brings in covering is going to be a big asset for him in college."