17 and 18 to finish the front nine and he closed his round with a bogey at nine.
Rose simply had to wait and when the time did arrive to drive he hooked as well and, after also being given a free drop, bogeyed
to slip to five under.
Worse was to follow as he ran up a double bogey seven on the seventh and bogeyed
the ninth, his final hole, as well.
Two closing pars gave Langer a two under par 70 and setting off again just 30 minutes later he bogeyed
the second, but then birdied the fifth and seventh.
Vanier was able to extend the match when Haag bogeyed
16, but Haag put it away by canning a 33-footer that likely would have raced several feet by had it not hit the cup.
Elkington had rolled in a15-footer on the ninth to turn in a one-under 33, bogeyed
the tenth, but then chipped in at the next.
Lee Westwood, two under at one point, bogeyed
the last three holes for a 73.
Jones took a 2-up lead in that match with a par on the 15th, but bogeyed
17 to give Chang an opening.
the par-three 11th - his second hole - but five birdies in next seven holes, including four in a row to turn in 32.
But last year's Irish Open champion then triple-bogeyed
the 200-yard 15th hole and bogeyed
the next two to crash from 12under-par to seven-under.
Having recovered from four over to two over on Thursday, he missed a 10-foot birdie chance on the 10th (his first) and then bogeyed
two holes later.
But with a chance to possibly climb into the top 10 for the weekend, Hnatiuk bogeyed
But Allan fought back to birdie both the 15th and 16th while Garrido, playing two holes behind the Australian, then double bogeyed
the 13th and bogeyed
both 14 and 17 to throw away his lead.
Mattiace, a 12-year professional who had not won in 219 previous tour starts, overcame a three-stroke deficit in the final seven holes Sunday at Riviera Country Club and won the 76th Nissan (formerly Los Angeles) Open when McCarron bogeyed
and by the turn, with a seven on his card at the long eighth, was four over.