Sweden's Peter Hanson fired a five-under par 65 on Thursday to grab the first-round lead in the US PGA Tour's $6.9 million Byron Nelson Championship.
Hanson didn't let his unfamiliarity with the TPC Four Seasons course bother him as he nabbed six birdies with just one bogey for a one-shot lead over Australian Marc Leishman, New Zealand's Tim Wilkinson and American David Duval.
"Always nice to get off to a fast start," said Hanson, who joined the US tour full time last season and is seeking his first win on the tour.
He fired a blistering 30 on the front nine, where he made five of his six birdies, coming home in even par with a bogey balanced by a birdie at 18.
"I got off to a really good start, had a few chances coming back in and made a bit of a clumsy bogey from the fringe on 14, but those things happen," said the Swede, who pulled out of the Wells Fargo Championship at Quail Hollow a fortnight ago with a back injury.