Six golfers could claim No. 1 at Masters

AUGUSTA, Ga. -- Fresh off his win in Houston, Phil Mickelson has another chance to reach No. 1 in the world for the first time.

The world ranking is so crowded at the top that six of the top seven players have a chance to reach the top of the ranking by winning the Masters this week. That includes Tiger Woods, who has slipped to No. 7.

The four majors offer 100 world ranking points to the winner.

Martin Kaymer remains No. 1, followed by Lee Westwood, Mickelson, Luke Donald, Graeme McDowell, Paul Casey and Woods. Casey is the only player among the top seven who could not reach No. 1 even by winning at Augusta because he has played more tournaments than Woods.

Mickelson last year had a dozen chances to reach No. 1 in the world until he began to slide down the ranking.