Johnson's masterful display off the tee at the par-73 Plantation Course at Kapalua included a near hole-in-one at the par-four 12th hole - where his drive left him a six-inch tap-in for eagle.
It took a ideal bounce, a flawless route and some wind to help the ball take off ... but couldn't it just roll a few more feet?
"What I'm going to take from this week is I really hit some quality iron shots all week long", he said.
The eight-shot margin of victory was his largest ever, and it was one short of the tournament record set by David Duval since this event moved to Kapalua in 1999. "I knew as long as I could keep doing that I was going to play well". It only crossed his mind when it was mentioned to him on Saturday.
Johnson, who seized the world No. 1 ranking last February, has now won at least one US tour title for 11 straight years.
"If I can play like that every week, I'm going to win a lot of times", he said.
Dustin Johnson produced an early contender for the best drive of 2018 as he came within six inches of making a hole-in-one albatross. Earlier this week he said a historic eight wins or more season was possible and something to strive for. "I know exactly where I want it to come down out of the air, and it did". "Hopefully I can keep playing good and maybe someday be No.1".
If you thought the fictional Happy Gilmore could smack a ball hundreds of miles, then you haven't seen real life pro-golfer Dustin Johnson let one rip from 400 yards. He also won in 2013 when it was shortened to 54 holes because of wind so strong the start of the tournament was delayed for three days. I told myself to get it to 25.
"But everything's going in the right direction".