Padraig Harrington leads by three strokes at the halfway point at the Senior PGA Championship after a bogey-free second round at PGA Frisco in Texas.
Leading by two overnight having broken the course record on Thursday, the Dubliner had a rather less spectacular day two, though he still posted an impressive round of 68 around the Fields Ranch East layout to extend his lead heading into the weekend.
Beginning on the 10th, Harrington reached the turn in 33, with birdies arriving on 14, 15 and 18. The back nine was a more low-key affair, consisting of eight successive pars and a solitary birdie at nine to leave him at 12-under-par.
His blemish-free opening 36 holes leaves him three clear of Japan's Katsumasa Miyamoto in second place, with former British Open champion Stewart Cink and Harrington's 2021 Ryder Cup opposite number Steve Stricker a shot further back on eight-under.
Harrington is seeking his second senior major title, having won the US Senior Open by a stroke from Stricker in Saucon Valley last summer.
Paul McGinley, the other Irish entrant, missed the cut on six over par after a second round 77.