Zach Johnson is hungry for a sweet finale to 2013 PGA Tour

Fresh from a two-stroke victory at the weather-delayed BMW Championship in Chicago on Monday, Zach Johnson would dearly love to end his 2013 PGA Tour campaign with "a splash" at this week's Tour Championship.

Not only is another tournament win on the line at East Lake Golf Club in the season's finale, but also FedExCup play-off honours and the eye-popping US$10 million bonus that comes with it.

Every player in the elite field of 30 has a mathematical chance of claiming both titles, but only Johnson and four others are automatically guaranteed the overall play-off prize by winning the Tour Championship.

"That's the point of the FedExCup is you want to get in contention coming into Atlanta," Johnson, who is ranked fourth in the points standings, said at East Lake.

"And fortunately, I'm in that position now where one really good week has significant incentives. The beauty of that is that we've got a great competition here to try to get to that point, and I love it.

"I love everything this course demands. Certainly, the field's great. It's just a fantastic tournament to kind of make a splash at the end of the year. I'm excited to come back here."

Though thrilled with his game after charging to the 10th PGA Tour victory of his career with a closing six-under-par 65 at Conway Farms in the penultimate play-off, Johnson knows the slate will be wiped clean this week.

"I've still got a lot of work to do," the 37-year-old American said. "It was a fantastic week [at the BMW] from start to finish, something that hopefully I can continue this week and beyond.

"This is arguably one of the best tournaments we have for sure, if not the best. It's a tournament that encompasses the whole year, so you've got to have good, steady play."

As for the US$10 million bonus, Johnson conceded that such a number was difficult to grapple with.

"That type of incentive is hard to just wrap your mind around," he said with a smile. "I can't imagine. I hate to say it, but it is just money.

"Fortunately, I'm in a position professionally where I don't think that's going to change me or my family at all, the hypotheticals," added Johnson, whose has piled up more than US$30 million in career earnings on the PGA Tour.

Any of the top five players in the points standings would secure FedExCup honours by winning this week's Tour Championship - and they are Tiger Woods, Swede Henrik Stenson, Australian Adam Scott and Americans Johnson and Matt Kuchar.

"I'm in a position just like the other four guys in the top five," said Woods, the FedExCup champion in 2007 and 2009, and winner of a season-high five titles on the 2013 PGA Tour. "Top five you control your destiny.

"You win the tournament, you win it outright. Sneds proved that last year," he added, referring to fellow American Brandt Snedeker, who clinched the 2012 Tour Championship and FedExCup honours after starting the week fifth in the standings.