I thought the cut was low 70 plus ties so if the 70th person was -1 and the 71st person was even why are the even players still in.
of the 83 golfers that posted 140 or lower, 82 are professionals. The PGA cut is low 70 "pros" & ties. So, of the 70 players at -1 an amateur was included (Justin Thomas) thus moving the cut to even. Hope this helps..