All six Penn State-affiliated wrestlers who competed will represent the United States later this year.
The former three-time national champion improved to 9-1 in the octagon.
Mirasola was a perfect 4-0 during the tournament.
A big weekend for Penn State wrestling at the World Team Trials featured gold for Zain Rutherford and silver for Jayden James.
Cochran could have one year of eligibility remaining with a medical redshirt.
Penn State wrestling put together a strong showing at the U.S. Open, highlighted by multiple podium finishes.