Lydia Ko opened the Ford Championship with a stunning 12-under 60 at Whirlwind Golf Club’s Cattail Course in Chandler, Arizona, on Thursday. This score marked the lowest round of her LPGA career.

What happened?

Ko started strong with four straight birdies, immediately putting the field on notice and giving herself momentum. She admitted she had never started a round that way before.

Why it matters for Lydia Ko

The round was overwhelming due to how quickly Ko settled into it. She was in control, hitting more greens than she has in a long time, and giving herself a lot of looks for birdies.

Ko's score stood as one of the rarest scores the tour has ever seen. By the end of the day, she took the first-round lead by one shot over defending champion Hyo Joo Kim, who fired a 61.

What comes next?

Ko did not sound haunted by the possibility of history, instead feeling grateful to be near it. She described being in the zone as a place where there are not many outside thoughts coming in and out of your head.

And she stayed focused on the shot in front of her, then switched off and relaxed between shots. This mindset might have been the most impressive part of all.

Ko also used a new Scotty Cameron 12 putter, a notable move for someone who does not make putter changes casually. She rolled it beautifully, holed plenty, and looked comfortable from the start.

The number everybody eventually started thinking about was 59. Ko said that thought finally crossed her mind after a birdie on the sixth, but what stood out most was her reaction to it.

So she talked about staying focused on the shot in front of her. Ko called it “definitely a fun round to have,” which is a pretty understated way to describe a day like that.

But the beauty of the round was that it never looked frantic. Ko was not scrambling for pars and stealing birdies. She was in control.

Ko is already an LPGA Hall of Famer with 23 career wins and three major titles. This was not a young player bursting onto the scene, but one of the game’s established greats still finding new ways to astonish people.