Making his Presidents Cup debut in 2013, Oosthuizen said the tournament needed some tight competition to survive.
“I think we’re almost at that point,” the world No.20 said.
“Running up against a brick wall in New York with an unbelievable in-form US Team, was just a very difficult that week.
“I think this week, this is probably the best chance we will have with this golf course, this crowd, and I think the way our guys are playing.
“I think this is probably the best chance that we’ll have in the four Cups that I’ve played.”
With seven International debutants, he felt the team carried few scars from Presidents Cup past and that could prove the difference.
“I think it’s the youth in our team – it’s a lot of youngsters and a lot of rookies, and it’s great to see how eager they are and how ready they are to get this done,” he said.
“That’s where I feel Ernie (team captain Ernie Els) has done an unbelievable job getting all of us ready and the boys are playing good golf.”
Winner of the 2010 British Open, as well as finishing second in four other majors, Oosthuizen has had a stellar preparation for the tournament.
He finished with an eagle for a final round 66 to earn second spot in last week’s Australian Open.
“My game is good – I’m playing nicely and I’m putting nicely,” he said.
“I used it as preparation and obviously I’ll take a lot of confidence and hopefully we can pull it off.”