Round 1: Mayakoba Golf Classic

MARANA, Ariz. – Thursday’s second round of the World Golf Championships-Accenture Match Play Championship has started. A total of 16 matches are scheduled for the Ritz-Carlton course at Dove Mountain. We’ll have updates all day on PGATOUR.COM and we encourage your comments throughout the day. Also check out PGATOUR.COM’s LIVE@ coverage on now.

SECOND ROUND UPDATES (All times ET)

6:24 p.m. – With a par at 17, Miguel Angel Jimenez has beaten Keegan Bradley 2 and 1 in the last match of the day. Bradley got in trouble off the tee and couldn’t convert a 13-foot putt to save par.

6:08 p.m. – One match left to be decided. Miguel Angel Jimenez is  1 up on Keegan Bradley with two holes to play.

5:59 p.m. – With a golden opportunity to extend the match, Tiger Woods missed a 5-1/2 foot birdie putt at the 18th hole, as Nick Watney wins 1 up. Woods drew a huge cheer from the gallery when he stuck his approach shot close, but his putt slid by to the right. Woods has not advanced past the second round since winning the Match Play title in 2008.

5:58 p.m. – Brandt Snedeker has beaten Kyle Stanley 2 and 1 in a rematch of their playoff at the Farmers Insurance Open.

5:50 p.m. – Rory McIlroy’s 3 and 2 win over Anders Hansen means that the remaining three No. 1 seeds have all advanced to the third round. Luke Donald, of course, was knocked out in the first round.

5:43 p.m. – Tiger Woods will need to win the 18th hole to extend his match with Nick Watney, who’s 1 up through 17.

5:39 p.m. – Lee Westwood about advancing to the third round for the first time: “I’m normally watching it by now. It’s good to watch. I hope it’s better to play.”

5:29 p.m. – Tiger Woods is now just 1 down to Nick Watney after winning the 16th hole with a par, as Watney found trouble with a wayward drive into the corporate tents. Keegan Bradley has also cut into Miguel Angel Jimenez’s lead. Bradley is 1 down through 13.

5:17 p.m. – Martin Kaymer, a finalist last year, is through to the third round after beating past Match Play winner David Toms 2 up. Kaymer took the lead at the 11th hole and finished with a birdie at the 18th.

5:09 p.m. – Three more matches have just ended. PGA TOUR rookie Sang-moon Bae held off Masters champ Charl Schwartzel, who nearly holed a 42-foot birdie putt at the 18th that would have extended the match. Bae won 1 up. Peter Hanson made quick work of Ernie Els, winning 5 and 4. And Lee Westwood has advanced to the third round for the first time in 12 Match Play starts after beating Robert Karlsson 3 and 2.

5 p.m. – Tiger Woods and Nick Watney both missed birdie putts inside 10 feet at the par-4 14th. Woods’ putt was less than 7 feet. He remains 2 down.

4:58 p.m. – Matt Kuchar defeated Bubba Watson 3 and 2 . It was a rematch of their consolation final of a year ago, which Kuchar also won. Kuchar has yet to trail at any point through 32 holes in the first two rounds.

4:46 p.m. – All nine remaining matches are now on the back nine. In the last match of the day, Keegan Bradley is 3 down to Miguel Angel Jimenez. The Spaniard has been bogey-free through 10 holes.

4:41 p.m. – After knocking out the top overall seed in the first round, Ernie Els – the 64th seed – is in big trouble. He’s 4 down to Peter Hanson through 12 holes. Els has just one birdie on his round.

4:28 p.m. – Nick Watney’s 17-foot birdie putt at the par-3 12th has put him 2 up against Tiger Woods.

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Lee Westwood has advanced to the third round for the first time in this event.

4:18 p.m. – Sang-moon Bae has birdied four of his last six holes and is now 1 up on reigning Masters champ Charl Schwartzel through 14 holes. Keegan Bradley has birdied two of his last four holes and is 1 down to Miguel Angel Jimenez through eight holes.

4:16 p.m. – Bubba Watson just chipped in for eagle at the 13th. Kuchar, with a similar shot, couldn’t duplicate it. Kuchar’s now 1 up.

3:57 p.m. – For the second consecutive day, Tiger Woods had to turn over a club and hit left-handed. Thursday’s shot came at the 10th hole when his second shot landed between a jumping cholla and a cactus.

3:56 p.m. – Steve Stricker on rallying to beat Louis Oosthuizen: “I’m really lucky to be moving on.” And about his winning putt: “I thought I was going to miss on the low side, but it just hung in there nice at the end.”

3:47 p.m. – The Tiger Woods-Nick Watney match has made the turn. The match is all square; Watney blew a chance to take the lead when he missed an 8-1/2 foot birdie putt at the ninth.

3:44 p.m. – John Senden now the lone Australian left in the tournament, as he knocks out countryman Jason Day  6 and 5. Senden has played 28 holes in the first two rounds and has yet to trail at any point.

3:33 p.m. – Mark Wilson closes out Englishman Robert Rock 3 and 2. Wilson eagled the par-5 second to take the lead and never trailed after that. Rock’s countryman, Lee Westwood, is having no trouble with Robert Karlsson. Westwood is 4 up at the turn.

3:28 p.m. – Martin Laird has beaten Matteo Manassero 2 and 1. Laird made eight birdies on the day. In the all-Australian match, John Senden is now 5 up on Jason Day through 12 holes.

3:16 p.m. – What a finish for Steve Stricker! He rolled in a 21-foot birdie putt on the 18th hole to beat Louis Oosthuizen, who missed his 10 footer that would’ve sent the match to extra holes. Stricker wins 1 up.

3:11 p.m. – Tiger Woods missed a 5-foot par putt, dropping the seventh hole to Nick Watney. That match is now all square.

3:07 p.m. – Hunter Mahan on his win: “It was all clicking … Putting, chipping, everything’s right there.”

3:05 p.m. – Dustin Johnson has beaten Francesco Molinari 7 and 5. Johnson won the last three holes to close out the match.

3:04 p.m. – Sang-moon Bae is playing in his first World Golf Championships. He’s a PGA TOUR rookie, too. But the 25-year-old Korean isn’t being intimidated. He just made a 4-footer for birdie at No. 9 to square his match with Masters champ Charl Schwartzel.

3:02 p.m. – David Toms made a 7-footer for birdie at the eighth hole to even his match with Martin Kaymer, the top seed in the Ben Hogan bracket.

2:59 p.m. – Consecutive birdies at Nos. 11 and 12 have Dustin Johnson 6 up on Francesco Molinari with six holes to play.

2:49 p.m. – Hunter Mahan reaches the third round for the second straight year after beating Y.E. Yang 5 and 3. The American finished with seven birdies and used just 18 putts in 15 holes.

Petersen/Getty Images

Rory McIlroy lines up a putt during Thursday’s match against Anders Hansen.

2:46 p.m. – Steve Stricker leads for the first time all day after draining a 17-footer for birdie at No. 16. He’s 1 up with two to play.

2:38 p.m. – Our first match is dormie after Y.E. Yang conceded the 14th when his third shot tangled with some cactus and Hunter Mahan was on the green with a 14-foot birdie putt. Yang is 4 down with four to go.

2:35 p.m. – Martin Kaymer has drawn first blood in his match with veteran David Toms, making a 7-footer for birdie at the seventh to go 1 up.

2:29 p.m. – Tiger Woods now 1 against Hunter Mahan, who three-putted from 26 feet at the fourth. And after halving the first six holes, Martin Kaymer is now 1 up on David Toms, thanks to an 8-foot birdie at the seventh.

2:26 p.m. – Hunter Mahan posted his seventh birdie of the day. He’s 3 up on Y.E. Yang after 13.

2:20 p.m. – Kyle Stanley draws first blood in his match against Farmers Insurance foe Brandt Snedeker, who three-putted from 31 feet at No. 1.

2:10 p.m. – Steve Stricker has rallied to win the last two holes and square his match against Louis Oosthuizen after 12 holes. “Oosthuizen let him hang in there too long,” said PGA TOUR Radio’s John Maginnes. Meanwhile, Tiger Woods won the second hole to square his match against Nick Watney.

2:01 p.m. – Dustin Johnson birdied the par-5 eighth. He’s now 5 up and in total command of his match against Francesco Molinari.

1:52 p.m. – Nick Watney’s birdie at the first hole gives him early lead over Tiger Woods.

1:31 p.m. – Aussie John Senden has birdied the third and fourth holes to go 2 up on his countryman, Jason Day. The steady Senden’s birdie putts came from 19 and 6 feet.

1:28 p.m. – Hunter Mahan’s birdie binge ended at No. 9 when he hit his approach over the green and missed a 9-footer to save par. Y.E. Yang made his 5-footer to win the hole and is now 3 down.

1:17 p.m. – Louis Oosthuizen has made the turn 2 up on Steve Stricker, who is the highest-ranked American in the field.

1:13 p.m. – The birdie barrage continues as Hunter Mahan makes a 16-footer at the eighth hole. That’s five in a row and puts him 4 up on Y.E. Yang.

1:10 p.m. – Martin Laird has made four birdies and had another 5-footer conceded in the first seven holes of his match with Matteo Manassero. He’s 2 up, as a result.

1:02 p.m. – Lee Westwood has played in all but one Match Play and has never gotten out of the second round. He plays Robert Karlsson today and tweeted: “Got a big match against a big swede today! Already tied my best ever at this tournament !Trying to see fri for the first time!sightssethigh!”

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Dustin Johnson got off to a quick start against Italian Francesco Molinari.

12:55 p.m. – Hunter Mahan and Y.E. Yang still have yet to halve a hole. Mahan keeps making birdies – his fourth straight, and fifth overall, has the American 3 up through seven holes.

12:51 p.m. – Birdies on his first two holes have given the big-hitting Dustin Johnson the early 2-up advantage over Francesco Molinari. Johnson, who had lost in the first round the previous three years, seems determined to stick around.

12:48 p.m. – Mark Wilson, who won the Humana Challenge in January, has taken a 2-up lead on Robert Rock after three holes. The American made a 3-footer for eagle at the second hole and won the third with a conceded birdie after Rock nearly put his bunker shot in the water.

12:36 p.m. – Hunter Mahan just made consecutive birdies to go 2 up on Y.E. Yang at the sixth hole. Mahan’s most recent birdie came when he holed a bunker shot – his other three were from 17 inches and 2 and 5 feet. The four birdies is more than Mahan made in 20 holes against Zach Johnson on Wednesday.

12:20 p.m. – The match between Hunter Mahan and Y.E. Yang is shaping up to be a roller-coaster ride as each has won two of the four holes played. Yang has led twice and Mahan responded each time by squaring the match with birdies.

12:12 p.m. – It’s Steve Stricker’s 45th birthday but he’s not getting any gifts from Louis Oosthuizen. The South African nearly drove the green at the 339-yard fourth hole, chipped on and made a 4-footer for birdie to go 1 up. The birdie was Oosthuizen’s second – he and Stricker halved the par-5 second with one each.

MARANA, Ariz. – Here’s a breakdown of each country represented at this week’s World Golf Championships-Accenture Match Play Championship, and which players remain in the field heading into Thursday’s second round.