"Zwinak runs and blocks like a bull in a china shop, he destroys whatever is in his path," said Scout.com Recruiting Analyst Bob Lichtenfels. "He hits the hole quick and is very light on his feet for such a big back and cuts just as well as most small backs. Once he hits the seam he has very good breakaway speed and switches the ball to the outside arm."
As a junior, Zwinak, who boasts 4.5 40-speed, rushed for 1,447 yards and 19 touchdowns while earning All-State and area Player of the Year honors. On defense, Zwinak made 53 tackles, five sacks and three interceptions. He's being recruited strictly as a fullback, however.
"Zach is an outstanding college football prospect," Linganore head coach Rick Conner told Scout.com. "He's big, fast, powerful and he loves the game. Zach started on both sides of the ball the last two years as a running back and linebacker, a tribute to his natural ability.
"What separates Zach from others is his athletic agility combined with his size and speed. He's very versatile and can fill many roles. Zach made a great jump in performance from last year to his junior year. He put himself at the top of the list in Maryland and has become a national recruit.
"He can dominate a game on either offense or defense. Offensively, he can wear you down with his power or he can score on one play with his break-away speed from anywhere on the field. Zach is very familiar with college athletics as both his parents were scholarship athletes."
Louisville is one of the latest programs to send an offer. The Cardinals have made Maryland a priority recruiting area and Zwinak is certainly one of the top prospects in the state. What does Zwinak think about Louisville's offer?
"It's exciting because a school like Louisville is looking at me. I don't know much about Louisville at this point – nothing really," Zwinak said. "I'm definitely looking forward to learning a lot more. I haven't had any contact with them yet but I know Coach (Larry) Slade has spoken with Coach Conner."
Zwinak says he's in no rush to make a college decision and likely won't do so until next season. This spring, Zwinak has visited Penn State, Maryland, Virginia Tech and Rutgers. Zwinak has ties to the Hokies as his father played football at Virginia Tech.
"My dad is leaving it up to me," Zwinak told Scout.com. "When I first got into football I followed Virginia Tech because of him playing there, but I follow a lot of teams."