Day takes early lead with 63 in Maryland

POTOMAC, Md. — Three years and 364 days since his last victory, Jason Day describes himself as “obsessed” with honing his new swing and improving his results, even if he never gets back to No. 1 in the world.

There wasn’t much room for improvement Thursday as Day shot a seven-under 63 to take the first-round lead at the Wells Fargo Championship.

Joel Dahmen was a shot back on what could be the best day for scoring at TPC Potomac at Avenel Farm, with rain, wind and unseasonably cool temperatures forecast through Sunday.

“We’ve got some weather coming in, so I feel like we’re going to go into grind mode over the next few days, which I typically like,” Day said.

Day, 34, has been working with instructor Chris Como on a swing that will protect his chronically balky back, and he says it feels solid with every club except the driver.

Day’s last win came in this tournament at Quail Hollow. The Wells Fargo moved to the Maryland suburbs this year because its usual venue hosts the Presidents Cup in September.

Nick Wass Associated Press JASON DAY, who has been working on a new swing to protect his back, leads by a shot at TPC Potomac.