In track & field, Gratz competed in events ranging from the 55-meters to the triple jump.

He was named an All-county pick after running a 7.5-second 55-meter hurdles, setting a school record.

He accepted a scholarship from the University of Connecticut over offers from Cincinnati, Michigan State and Temple.

He had a 46-yard interception return for a touchdown in the second quarter of the 2011 Tostitos Fiesta Bowl.

Gratz was selected in the third round, with the 64th overall pick, by the Jacksonville Jaguars in the 2013 NFL draft.

[8][9] He registered his first career interception on November 10, 2013 against Tennessee Titans quarterback Jake Locker.