Cam Smith admitted he felt he had to prove himself after winning his maiden LIV Golf event in Chicago.
The Australian golfer came close to winning on debut in LIV Golf at Boston earlier in September but fell short.
Smith charged into the lead in Chicago after a second round that saw previous leader Dustin Johnson stumble.
Going into the final round, Smith managed to hold his nerve, nailing a birdie on the final hole and finished three shots clear of runner-up Peter Uihlein.
"I think I probably had to prove to myself and probably to some other people that I'm still a great player," Smith said.
"I'm still out here to win golf tournaments and I'm proud of how I hung in there today.
"Didn't really have my best stuff I think the first eight or nine holes but stuck it tough and made some good putts coming in, it was nice."
After seeing Johnson win in Boston, a potential rivalry with Smith seems to be brewing with the Aussie admitting the American looms as one of his toughest opponents.
"He's probably the one on the group of the players here that you look at and you think he's going to be pretty close to the top of the leaderboard every week," Smith said about Johnson.
"So I hope he thinks the same about me and we can keep this going."
Smith's win in Chicago sees him pocket AU$6 million in total prize money with his birdie on the final hole ensuring his team Punch GC finished third in the standings and also pocketed some cash.
"I knew that putt on the last there meant a lot for the team and it was nice to drain that one," Smith said.
LIV Golf will return to action in Bangkok, Thailand next month before events in Saudi Arabia and Miami.
LIV Golf Chicago final leaderboard