Newsweek previously reported that Thomas faced opposition to her competing in a January 8 swim meet against Dartmouth's and Yale's teams.
While she placed first in two races and fifth in another, a few women outside the meet protested her participation, calling it unfair.
However, others at the event supported her.In a statement, the University of Pennsylvania said it is "committed to being a welcoming and inclusive environment for all our student-athletes," adding that "as a member of the NCAA, Penn is governed by the policies of the national governing body.
Lia Thomas has met or exceeded all NCAA protocols over the past two years for a transgender female student-athlete to compete for a women's team."Under the new NCAA policy, Thomas will now need to comply with USA Swimming's criteria.