Seamus Power posted an improved 67 on Day 2 but still wound up missing the cut at the Byron Nelson in Texas.
After a disappointed 73 on a day of low scoring on Thursday, Power rallied in his second round, rolling in six birdies with just two dropped strokes to jump to two-under par overall for the tournament.
But with the field rattling in birdies at TPC Craig Ranch, this was three strokes adrift of the cut-line late on Friday.
The lead at the midway point is held by Mexico Open champion Jake Knapp, who posted successive 64s on the opening two days for a tally of 14-under par.
He leads by a stroke from Troy Merritt, who posted a scintillating 62 on Friday, and opening round leader Matt Wallace, who followed his 63 with a second round 66.
Much of the halfway focus though is on English teenager Kris Kim became the youngest player to make the cut on the PGA Tour in 11 years after a birdie at the last.
Kim, the son of former LPGA player Ji-Hyun Suh, carded a second-round four-under-par 67, which included a run of five birdies and one bogey over his front nine.
At 16 years and seven months he became the youngest player to make the cut on tour since 14-year-old Guan Tianlang at the 2013 Masters, and, according to the PGA Tour, the fifth youngest in history.
"I'm happy. I can’t wait to get started again tomorrow," said Kim, a junior member at Walton Heath in Surrey, whose seven-under total left him tied for 36th.
"I’ve enjoyed it so much the last couple days and being here two more days makes it so much sweeter."
Additional reporting: PA
