Consistent and calm down the stretch, Titleist Brand Ambassador Greg Chalmers won the Australian Open Sunday for the second time in his career.

Trusting a Pro V1x golf ball and bag of Titleist equipment, including a Titleist 910D3 driver and new Vokey Design SM4 wedges, Chalmers played his final nine holes in bogey-free 2-under to post a closing 3-under 69.

The lefthander got up-and-down from a greenside bunker on the par-3 18th hole at The Lakes Golf Club, holing his Pro V1x from 5 feet to secure the one-shot victory and one of three wins on the weekend for Titleist golf ball players.

 Titleist Pro V1 and Pro V1x players have now won 165 of the tournaments played on the worldwide professional tours so far in 2011, 140 more than the nearest competitor with 25 and more than all competitors combined. A total of 20,476 players have played Titleist golf balls in those same events, more than six times the nearest competitor and more than all other golf balls combined.

Chalmers shot rounds of 67-72-67-69 to finish the four rounds at 13-under 275, one ahead of Pro V1 loyalist John Senden.

"I am just extremely excited and extremely pleased to have won this tournament twice. To win it once, you can stumble into that. I can see how guys can do that. But to win it twice, with this field, that does something for me," said Chalmers, who also won his national championship in 1998.

"That really floats my boat and it's very exciting for me. I don't know that there's any extra gratification. Just that I have got my name on the (Australian Open trophy) twice. That's phenomenal."

Chalmers was one of 12 Titleist golf ball players that finished in the top 14 on the final leader board.

Titleist Brand Ambassadors Adam Scott (Pro V1), Nick Watney (Pro V1x) and Geoff Ogilvy (Pro V1), as well as Pro V1 loyalist Nick O'Hern were among five players who tied for fourth place, four shots behind Chalmers.

Ogilvy fired the lowest final round of the tournament with a 7-under par 65 that included six birdies and an eagle.

Titleist was the overwhelming favorite golf ball with 115 players, more than six times the nearest competitor with 18 and more than all competitors combined.

Titleist was also the top choice in fairway metals (67), hybrids (51), irons (80), sand, lob and approach wedges (209) and putters (50). 

Here's a closer look at Greg Chalmers's Titleist equipment:

Ball: Titleist Pro V1x
Driver: Titleist 910D3 10.5º (Aldila RIP 60)
3-wood: Titleist 909F2 13.5º (Aldila VS Proto 80)
5-wood: Titleist 910F 17º (Aldila VS Proto 80)
Hybrid: Titleist 909H 21º (True Temper Dynamic Gold)
Irons: Titleist CB 4-P (True Temper Dynamic Gold)
Wedge: Titleist Vokey Design SM4 46º, 54•11º (True Temper Dynamic Gold)
Wedge: Titleist Vokey Design Spin Milled 60•07 (True Temper Dynamic Gold)

• LPGA: Pro V1x loyalist Catriona Matthew won the Lorena Ochoa Invitational in convincing fashion, closing with a 1-under 71 for a four-shot victory in Mexico.

 It marked the fourth-career LPGA title for Matthew, who finished at 12-under 276.

"I'm absolutely delighted," said Matthew, who last won the 2009 Ricoh Women's British Open. "Already I don't think it's quite sunk in yet. I got off to a good start and hung in there in the last few holes."

Defending champion I.K. Kim (Pro V1) finished second at 8-under 272.

Three players tied for fourth at 5-under 283, including Julie Inkster (Pro V1) and Hee Kyung Seo (Pro V1x).

Titleist was the overwhelming golf ball of choice at the event with 22 players, more than four times the nearest competitor with five and more than all competitors combined.

• SUNSHINE TOUR: Pro V1x loyalist Warren Abery won the Nedbank Affinity Cup, leading a 1-through-5 finish for Titleist golf ball players.

 Abery carded a final round two-under 70 en route to an 11-under par 205 victory total, two shots clear of Titleist Brand Ambassador Prinavin Nelson (Pro V1x) and Pro V1x loyalist Andrew Curlewis.

Pro V1x loyalist Darren Fichardt was another shot back in fourth position, while Vaughn Groenewald (Pro V1) placed solo fifth.

“It’s great to win – that’s what we all play for – and it’s nice to be able to close it out,” Abery said of his seventh-career title.

Titleist was the overwhelming top choice in golf balls with 52, more than three time the nearest competitor with 16 and more than all other golf balls combined.

• EUROPEAN TOUR: Titleist was the No. 1 golf ball of choice at the Barclays Singapore Open with 122 players, more than four times the nearest competitor with 26 and more than all competitors combined, including runner up  Juvic Pagunsan (Pro V1x) .

• JAPAN: Runner-up Toru Taniguchi (Pro V1x) was one of 36 players at the Taiheiyo Masters that relied on Titleist golf balls for their success, more than any other competitor.