Johnson's win in the final match came against the rising star, and future Ryder Cup match-play threat, Jon Rahm.
"This was a tough one", Johnson said. 'I wish it hadn't happened but I'm proud of the way I played'.
The Match Play is no longer a 64-player single elimination like the NCAA Tournament.
Under the threat of facing a retroactive penalty at the end of his round, Johnson played his last seven holes without fear, capping a four-shot rally to start the day to win going away by three strokes after the USGA assessed a penalty that Johnson no longer cared about.
Rahm needed a birdie on the 18th to take the final to extra holes but missed his putt.
Johnson is now the 5/1 favourite to win The Masters, while Rahm is down to as low as 22/1. "There's still a lot of room for improvement in my game, so I'm just going to keep working on it".
The championship match of the World Golf Championship Match Play on Sunday between two of the game's true power players, world No. 1 Dustin Johnson and young bull Jon Rahm of Spain, was decided by consistency rather than brute strength with, perhaps, a little bit of experience thrown in for good measure.
After he'd won on Sunday, after he'd disposed of those seven opponents and claimed that third straight title, Johnson was asked whether he's unbeatable when he's at his best.
The 22-year-old Rahm, a former amateur world number one, won his first PGA Tour title at the Farmers Insurance Open in January and is now ranked 25th in the world. "Anytime I did something, if it could go wrong, it just went wrong", he said. "Unfortunately for me, I had the hottest player on earth".
Even though Woods was more dominant than Johnson is now, the Match Play was the toughest for him to win.
While Johnson held a sizable lead over Rahm for most the day - he was four-up through six and five-up through eight before Rahm cut that lead to two - the two put on a very entertaining match off the tee.
Johnson defeated Hideto Tanihara in another close match earlier in the semifinals while Rahm took down Bill Haas, the third-place victor.
Dustin Johnson has now won fourteen PGA Tour tournaments, with one being a major-the 2016 U.S. Open.
In the match for third place, Haas beat Tanihara 2&1, though the loser at least enjoyed a hole-in-one at the par-three seventh.
"When I practiced this course I think tee shot was most important thing, so I focused on good tee shot so that makes this good result". However, after clawing his way back to just 1 down with two holes left, golf fans were running out of superlatives to describe his fortitude, conviction and moxie.
Always one of the game's longest players, Johnson's wedge game is now among the Tour's best and his putting continues to be inexplicably overlooked. An example is how he played the thirteenth hole in this finals match, when he was three down to Johnson.
South Korea's Mirim Lee stormed to a six-shot success in the Kia Classic in California.
But Points closed the door thanks to playing the final six in four under, grabbing his third career win in 285 PGA Tour starts.
"It's been a long time to be victor of the tournament, so I kind of nervous before I start of game".
That should benefit him when he returns to Augusta after tying for sixth and fourth the previous two years.
Retief Goosen, Bill Lunde and Bryson DeChambeau tied for second.