Pro V1x loyalist Yani Tseng successfully defended her title Sunday at the Walmart NW Arkansas Championship, adding yet another highlight to an already historic season.

Tseng, the No. 1 player in the Rolex World Rankings, rolled her Pro V1x golf ball in from 4 feet for birdie on the first hole of a sudden-death playoff with Pro V1 loyalist Amy Yang to earn her 10th-career LPGA victory and lead a four-win week for Titleist Pro V1x players around the globe.

"Very exciting," said Tseng, who closed with a 3-under 68 at Pinnacle Country Club in Rogers, Ark.

She made two late birdies, including an eight-footer on the par-4 16th, to finish regulation tied with Yang at 12-under 201.

Tseng and Yang were two of 107 players in the field that trusted Titleist golf balls for their success, more than nine times the nearest competitor with 11 and more than all competitors combined.

Titleist golf ball players have won 119 times across the worldwide professional tours so far in 2011, nearly six times the nearest competitor with 19 and more than all other golf balls combined.

 Tseng, 22, has won five times on the LPGA this season, including a pair of major titles at the Wegmans LPGA Championship and Ricoh Women's British Open. She also won three times before the start of the season in Taiwan and Australia.

Tseng has won eight of her last 33 starts, a winning percentage of just under 25 percent, including four of her last eight.

She is the only player on the LPGA whose scoring average (69.59) is below 70.

Tseng also leads the tour in greens in regulation (75.1), birdie average (4.61) and driving distance (268.4).

ASIAN TOUR: Pro V1x loyalist Himmat Singh Rai survived a five-way playoff to win the Handa Singapore Classic for his first Asian Tour title.

Rai won with a birdie on the sixth playoff hole, topping a leader board that featured eight Titleist golf ball players in the top 10.

A total of 97 of the 144 players at the Singapore Classic relied upon Titleist golf balls for their success, nearly five times the nearest competitor with 20 and more than all competitors combined.

JAPAN TOUR:  Pro V1x loyalist Dong-hwan Lee shot a final-round 3-under 69 to win the Toshin Golf Tournament at Lake Wood.

Lee rolled his Pro V1x in for birdie at the par-5 18th, finishing at 20-under 268 to clinch a one-shot victory. It was his second-career win on the Japan Tour.

Titleist was the overwhelming golf ball of choice at the Toshin Golf Tournament with 64 players. Titleist was also first in hybrids (42); and sand, lob and approach wedges (110).
 
• CHINA PGA TOUR: It was a 1-2-3 finish for Titleist Pro V1x players at the Unicom Pro-Am in Beijing, as Zhang Xin Jun won the event for the second time in four years.

 Zhang, who first won the tournament in 2008 as an amateur, posted a final round 4-under 68 en route to a 10-under par 278 victory total.

Fellow Pro V1x loyalists Yuan Hao and Li Chao rounded out the Top 3.

A total of 125 players relied upon Titleist for their success at the Unicom Pro-Am, more than 11 times the nearest competitor with 11 and more than all competitors combined.

• EUROPEAN TOUR: Titleist was the overwhelming golf ball of choice at the KLM Open with 99 players, more than four times the nearest competitor with 22 and more than all competitors combined.

• SUNSHINE TOUR: Titleist was the overwhelming golf ball of choice at the Telkom PGA Pro-Am with 56 players, four times the nearest competitor with 14 and more than all competitors combined. Of the top five players on the final leader board, four were Titleist golf ball players.