If you stay off social media, a). Good for you. Your life is definitely way, way better than the rest of us idiots scrolling through this crap every day; and b). You probably don’t know about one of the funnier “memes” in the game. It’s from the film “Jumanji”, when Robin Williams’ character exits the game and looks incredibly dishevelled. He has no idea where he is or what day it is, and he simply says “WHAT YEAR IS IT?” to convey his feelings.

This would be a perfect way to describe the first-round leaderboard, on which Jason Day is tied for the lead at five-under with Brendon Todd, and Martin Kaymer and Zach Johnson are among the group that is one back. What year is it? 2015, apparently.

Actually, the trio of Day, Kaymer and Johnson looked like their 2015 selves on Thursday at TPC Harding Park. Day, who won the PGA in 2015 and climbed to No.1 in the world a few weeks after, was bogey-free, much of that thanks to a stellar approach game, an area that was lacking at the beginning of the restart. But he’s steadily improved with his irons over his last three starts, and he capitalised by collecting three straight top 7s. The scary part? He putted just fine on Thursday. If the flat stick gets hot, we really could see a glimpse of the old Day this week.

https://twitter.com/PGAChampionship/status/1291437235716448257?s=20

“I’m not like excited – I shouldn’t say I’m not excited,” said Day. “I am excited to come out and play every day, but I know that I can improve, and mainly my putting can improve a little bit more.”

Then there’s Kaymer and Johnson, who each threatened to tie Day at five-under at one point during their rounds. Kaymer bogeyed his final hole, Johnson his second-to-last, but both scores held up to finish the day in a tie for second. Kaymer’s last top 10 in a Major came at the 2016 PGA Championship, Johnson’s at the 2016 US Open. Two years prior, Kaymer blitzed the field in the US Open at Pinehurst. In 2015, Johnson held on to win the Open Championship in a three-way playoff, which Day missed out on by a shot. Both have fallen well out of the top 100 in the Official World Golf Ranking, making their appearance at the top of the board legitimately shocking on Thursday morning.

It’s still very early. But for one day in San Francisco, it felt like old times.