Jason Day watches his putt on the 13th green during the second round of the Arnold Palmer Invitational golf tournament in Orlando, Fla., Friday. Day shot a 7-under 65 and leads the tournament by two shots over Henrik Stenson going into the weekend.

ORLANDO, Fla. — Jason Day felt like he was bearing down on each shot. He made it look much easier Friday in the Arnold Palmer Invitational.

Day made a pair of long birdie putts and otherwise put on a clinic at Bay Hill for a 7-under 65 that gave him a two-shot lead over Henrik Stenson going into the weekend.

“It was great,” he said. “I felt like I couldn’t do anything wrong out there.”

Day was at 13-under 131 and was five shots ahead of Jamie Lovemark (68) when he finished.

Stenson faced a daunting task — eight shots behind when he teed off in the afternoon — and he shot 31 on the back nine for a 66 to stay in the game. Justin Rose also had a 66 and was three shots behind.

Day, Stenson and Rose will play together Saturday because tee times have been moved forward to avoid the threat of storms.

Rose wasn’t bothered to see Day so far ahead. His objective was to take care of the par 5s and keep a clean card, and he did both. Rose is now 9 under on the eight par 5s he has played this week. And he was bogey-free on Friday.

Day was driving it long and straight, hitting his irons well and making big putts. It’s a great combination for anyone, particularly a player who reached No. 1 in the world last year by winning four out of six tournaments, including his first major.

Rory McIlroy was able to watch the whole show.

McIlroy, who opened with a 75, was in the group behind Day and saw the Australian start to pull away from the field. McIlroy had his own issues on Friday, starting with a chance to play for two more days. He handled that with ease, making four birdies on the back nine to get above the cut line and posting a 67.