Kim has had a rough 2016-2017, missing seven cuts and withdrawing four times (Kim said post-round that he's struggled with a wrist injury) in 19 PGA Tour events this season. He was the only player Sunday who didn't make bogey in his round of 3-under 69 for a three-shot victory.
Kim is the youngest ever to win the tournament, surpassing Adam Scott who won the tournament at the youthful age of 23 when he finished ahead of Padraig Harrington in 2004.
Kim claimed his second win on the PGA Tour in just his second appearance in the tournament after finishing tied for 23rd a year ago in his debut at The Players.
Kim's triumph saw him replace Australia's Adam Scott as the youngest ever victor of the Players Championship, which is regarded as golf's unofficial fifth major.
Kim started the day two strokes off two co-leaders: J.B. Holmes and Kyle Stanley.
"My father told me, 'If such a great player is using it, you should give it a try, '" said Kim, who's ranked 94th on the tour with 29.02 putts per round and tied for 155th with 1.795 putts per hole on average. Making its 15 consecutive appearance at TPC Boston, the Dell Technologies Championship will showcase the top 100 players in the FedExCup standings over Labor Day weekend, August 30 to September 4.
A total of 66 PGA Tour golfers have earned more than $1 million over the course of the 2017 season so far, but that doesn't mean that some players aren't trying to save money when possible.
21-year-old Kim will have to go back to South Korea by the time he's 30 to serve his time in the military so it remains to be seen at what point he will drop the clubs to return home.
"He played like someone that was doing it for five or six years ... like it was just another round of golf", Kim's playing partner Oosthuizen said.
Rafa Cabrera Bello of Spain hit 8-iron that bounded off the side of a bunker and into the cup for an albatross 2 on the par-5 16th.
Most tour wins only carry a two-year exemption but victory in the Players comes with an extra three years.
Kim became the second South Korean to win the event after KJ Choi in 2011 and he said he hoped his victory would help inspire his countrymen to raise their game. "I was confident that I could do well here as long as I had my short game in place".