Casas second-round output, probably the worst in his pro career which started 10 years ago, came after an opening-round 82. With a 174 total, 34-over for the tournament, he miserably failed to make cut pegged at 151.
In fact, the 35-year-old Filipino landed in the bottom of the field 155th and last. Japans Toshimitsu Izawa was the only player who failed to answer Fridays starting gun, withdrawing from the tournament after firing an 80 the previous day.
Casas, who made it to the tournament via the backdoor, scored his first and only birdie in two rounds at the 12th hole which, at 499 yards, stands as the longest par-four in US Open history. He double-bogeyed the same hole last Thursday.
But it proved to be the only bright note in his round marred by two triple bogeys on the par-3 third and par-four 15th holes. He also suffered five double bogeys on the first, fourth, sixth, 10th and 17th and had seven bogeys against three pars.
In 36 holes, the former RP Open champion and one of the longest hitters in the Asian Tour had an average drive of 263.5 yards, and a norm of 33 putts (1.83 per hole). He only hit 10-of-28 fairways (36 percent) and 11-of-36 greens in regulation (31 percent).