San Beda stopped Mapua on its tracks .
San Beda dealt the Cardinals their first loss in the second round , 75 - 65 , Friday in the NCAA Season 91 men 's basketball tournament at San Juan Arena .
San Beda stopped Mapua on its tracks and dealt the Cardinals their first loss in the second round , 75 - 65 , Friday in the NCAA Season 91 men 's basketball tournament at San Juan Arena .