How the WGC-Dell Match Play group play tiebreaker works

Australia's contingent - defending champion Jason Day and in-form Marc Leishman - have been drawn to face off in the same pool at this week's World Golf Championship-Match Play event.

Groups were determined by pulling one name from each of four 16-man segments based on the world ranking.

"But that's in the past and I'll have to play solid golf to beat top players like Jason, Pat (Perez) and Lee (Westwood)".

Rory McIlroy, the No. 2 seed who won two years ago at Harding Park, has Emiliano Grillo, 2015 runner-up Gary Woodland and Soren Kjeldsen.

Fisher might be able to wrap up a spot in the Masters if the Englishman can advance out of his group.

Day prompted further laughter when he could not recall how many rounds he played that week, saying: "I can't remember what the old format was, how many rounds it was".

Bill Haas 1 point each way at 100/1 with Bet On Brazil - Shocked to see him at such long odds, came through a tough group last season and as he is the only American in his group this year think he will get to the knock-out stages again - very consistent all season, don't miss out on him.

Jordan Spieth at least won't have to worry about playing a close friend like he did a year ago against Justin Thomas. This change was made in an effort to make the group play matches on Friday, the final day of group play, more meaningful for more players.

Moore won the U.S. Amateur and the U.S. Public Links Amateur in 2004.

Spieth is the local favorite, helping the Texas Longhorns to the NCAA title in 2012.

On that occasion, Day pulled off a thrilling win over Victor Dubuisson in the final which went to the fifth extra hole as the Frenchman kept himself in the hunt with some outrageous escapes from the desert scrub.

There are 16 groups of 4 players with only the player who finishes top of their group going through. The other is Matt Kuchar, who won in Arizona when it was single-elimination. "Now it's an opportunity to play more rounds, and fans and the viewing audience get to see the players they want to see play multiple rounds".

"Everyone in this tournament is a great player; you're not ranked within the top 64 in the world without having a lot of skill", Leishman told AAP.