Jason Day not losing sleep over Chambers Bay challenge

The key to success in a U.S. Open, Jason Day, contends, is a golfer’s mental approach.

“The U.S. Open is all about controlling your attitude, controlling your emotional level and stress level,” Day said after his practice round Monday at Chambers Bay. “It can be a very frustrating week if you let it be.”

The frustration can come from several factors. One, the U.S. Open is the toughest major of the year, he said. And the unique qualities of the Chambers Bay demand creativity and imagination.

“They can kind of trick this course out,” he said, expanding on the changes in elevation and the way the set-up can give golfers different challenges every day.

Taking his own advice, Day viewed Chambers Bay with a positive perspective from the start.

“When I first arrived, I was driving down the driveway and it caught my eye in a way that I really was going to enjoy this week regardless how I play because I was going to enjoy the challenge of the course,” Day said. “It’s just one of those courses that got me excited.”

Day has had rare success in his four previous U.S. Opens, notching two seconds and a fourth-place.

Day said he’s healthy now after having suffered dizzy spells and exhaustion recently. He’s undergone sleep studies, blood tests and MRIs to his head and neck, and all tests were negative for problems.

“I think I just kind of ran out of gas,” he said. “I know I have sleep-deprivation … I guess that’s part and parcel of having a kid.”