IRVING, Texas — Peter Hanson made his only back-nine birdie with a 6-foot putt at the 18th hole, closing out a 5-under 65 for a one-stroke lead over David Duval and two others after the first round of the Byron Nelson Championship.

Duval, ranked 890th in the world 15 years after being No. 1, birdied his last three holes — Nos. 7-9 — after pitching in from 57 feet for another birdie at the fifth hole. He’s winless since the 2001 British Open.