Keep that card

Daniel Summerhays: He was the first alternate at the Powell, Ohio, sectional qualifier and has made the most of his opportunity. Summerhays, who didn’t know he was in the field until Monday, made the turn in Round 2 at even par for the afternoon, then caught fire on the back nine. He shot a 5-under 30 coming in, making it to red numbers for the tournament at 1 under.

Toss that card

Jason Day: The No. 1 player in the world made a mess of his 33 holes played Friday from the get-go. Day put his first tee shot of the day into the rough, dunked his second shot into a bunker, chipped to the green and two-putted from 15 feet for an opening bogey. By the time the sun set Day was 5 over for the day, with three challenging holes left Saturday morning before the cut is set.

On the course with …

Rory McIlroy: The two-time U.S. Open winner famously chucked his 3-iron into a pond during the 2015 Cadillac Championship. There isn’t water at Oakmont but no one would have blamed him for a repeat performance Friday. McIlroy hit driver onto the 17th green, a superb shot until it tumbled off the back and into the sand. He then thought his bunker shot came off perfectly, except that it rolled all the way across the green into another bunker. So it went for McIlroy when first-round play resumed. He couldn’t crack Oakmont’s code, and the course bit back. McIlroy made five bogeys in his final seven holes and is at 7 over.

Open moment

Jason Kokrak grew up just over an hour from Oakmont Country Club, and his golf coach was a member. Kokrak played the U.S. Amateur and the 2007 U.S. Open at Oakmont and has acquired the kind of course knowledge that has come in handy this week. “I just kind of know what to expect,” he said. “I know how fast the greens can get. I know some of the tricky pin placements. I know where not to hit it.” Kokrak is 1 over through two rounds, five shots off the lead.

Chip shots

• Officially, the first round of the U.S. Open concluded 32 hours and 51 minutes after it started.

• Phil Mickelson (7 over with two holes to play in Round 2) is in danger of missing the cut in back-to-back majors for the first time since the U.S. Open and British Open in 2007.

• Bubba Watson needed just four holes to finish Round 1 in the morning, then was done for the day. So he took his son, Caleb, and Day’s son, Dash, to the movies.

• Peter Hanson, a two-time Ryder Cupper from Sweden, was disqualified after signing an incorrect scorecard.

Key hole

Par-4, 468-yard No. 9: Andrew Landry came out Friday morning on No. 9 to hit his only shot of the day, a 10-foot putt he made for birdie and a 4-under 66. Dustin Johnson ended the day some 15 hours later when he two-putted the hole as the horn sounded, tying Landry at the top.

Quote of the day

“These greens aren’t for everybody.”

— Fox Sports golf analyst Paul Azinger, moments after Scott Piercy missed two putts from 3 feet.

Tweet of the day

“The microphone in the cup. Clank gurgle gurgle is def emmy award winning stuff”

— Champions Tour golfer Steve Elkington, clearly enjoying TV coverage (@elkpga)

Day 3

In what might be one of the longest waits in golf, the wave of players who began their first rounds Thursday finally will begin their second rounds at 7 a.m. Saturday. It’s another dawn-to-dusk schedule, and Fox Sports 1 has coverage beginning at 6:30 a.m. with Fox taking over at 10 a.m