It's one of the biggies not just in golf, but in all of sports and Justin Thomas now holds the PGA Tour's lowest 72-hole scoring record.
Doug Ferguson on Thomas's Sony Open victory that included a 59 and a four day total of, gulp, 253.
Thomas capped off his wonderful week at Waialae that began with a 59 with his second straight victory. He two-putted birdie from 60 feet on the par-5 18th and closed with a 5-under 65 to set the record at 253.
Tommy Armour III shot 254 at the 2003 Texas Open.
"It's been an unbelievable week. Unforgettable," Thomas said before going to sign his historic card.
The final round highlights, in case you were watching something else...