MARANA, Ariz. — Martin Kaymer is the new No. 1 in golf, this time without much debate.

MARANA, Ariz. — Martin Kaymer is the new No. 1 in golf, this time without much debate.

Kaymer calmly rolled in an 8-foot par putt on the 18th hole Saturday for a 1-up victory over Bubba Watson to advance to the final of the Match Play Championship. That was all he needed to move to No. 1 in the next world ranking.

The 26-year-old German becomes the second-youngest player to be No. 1 since the ranking began in 1986. Tiger Woods was 21 when he reached No. 1 in June 1997.

It ends the 17-week reign of Lee Westwood, who had only three wins on his world ranking ledger when he became No. 1.

Kaymer has won seven times in the last two years, including his first major in the PGA Championship at Whistling Straits when he beat Watson in a three-hole playoff.

And another big win might not be too far away.

With his 1-up victory, Kaymer advanced to the championship match today against Luke Donald of England, who set an Accenture Match Play Championship record by needing only 73 holes in five matches to get to the last match.

Kaymer, though, already has reason to celebrate.

"It's obviously very special for me to be the second German," he said of the world ranking. Bernhard Langer was the first player to be No. 1 when the ranking debuted at the 1986 Masters. He stayed there for only three weeks.

Even so, more hard work awaits.

No one has been more dominant at Dove Mountain than Donald, who has yet to trail in any of his five matches. Donald only had to play 27 holes in his quarterfinal win over Ryan Moore and his demolition of Matt Kuchar in the semifinals.

It marks the second straight year for an all-European final in this World Golf Championship. A year ago, Ian Poulter defeated Paul Casey in the championship match.

Mayakoba Golf Classic

At Playa Del Carmen, Mexico, Johnson Wagner shot a 6-under 65 to take a one-stroke lead over Chris Stroud after the third round in Mexico.

Wagner, the 2008 Houston Open winner, had a 13-under 200 total on the Greg Norman-designed El Camaleon course on the Caribbean coast. Stroud, the second-round leader after making eight straight birdies in a 63, shot a 70.

Bobby Gates (64), Spencer Levin (67) and Jarrod Lyle (67) were 11 under.

HSBC Women's Champions

At Singapore, Japan's Chie Arimura shot a 1-under 71 to maintain a one-stroke lead over Australia's Karrie Webb after the third round in Singapore.

The 23-year-old Arimura was steady on the third day of the event, shooting two birdies and one bogey for an 11-under 205 through three rounds.

Webb shot 70 to cut Arimura's lead by one stroke.

Yani Tseng of Taiwan shot 69, but was still six strokes back at 5-under 211.